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Run idnits with the --verbose option for more detailed information about the items above. -------------------------------------------------------------------------------- 2 AVTCore W. Kim 3 Internet-Draft J. Lee 4 Intended status: Standards Track D. Kim 5 Expires: December 29, 2013 J. Park 6 D. Kwon 7 NSRI 8 June 27, 2013 10 The ARIA Algorithm and Its Use with the Secure Real-time Transport 11 Protocol(SRTP) 12 draft-ietf-avtcore-aria-srtp-03 14 Abstract 16 This document describes the use of the ARIA block cipher algorithm 17 within the Secure Real-time Transport Protocol (SRTP) for providing 18 confidentiality for the Real-time Transport Protocol (RTP) traffic 19 and for the control traffic for RTP, the Real-time Transport Control 20 Protocol (RTCP). It details three modes of operation (CTR, CCM, GCM) 21 and a SRTP Key Derivation Function for ARIA. 23 Status of This Memo 25 This Internet-Draft is submitted in full conformance with the 26 provisions of BCP 78 and BCP 79. 28 Internet-Drafts are working documents of the Internet Engineering 29 Task Force (IETF). Note that other groups may also distribute 30 working documents as Internet-Drafts. The list of current Internet- 31 Drafts is at http://datatracker.ietf.org/drafts/current/. 33 Internet-Drafts are draft documents valid for a maximum of six months 34 and may be updated, replaced, or obsoleted by other documents at any 35 time. It is inappropriate to use Internet-Drafts as reference 36 material or to cite them other than as "work in progress." 38 This Internet-Draft will expire on December 29, 2013. 40 Copyright Notice 42 Copyright (c) 2013 IETF Trust and the persons identified as the 43 document authors. All rights reserved. 45 This document is subject to BCP 78 and the IETF Trust's Legal 46 Provisions Relating to IETF Documents 47 (http://trustee.ietf.org/license-info) in effect on the date of 48 publication of this document. Please review these documents 49 carefully, as they describe your rights and restrictions with respect 50 to this document. Code Components extracted from this document must 51 include Simplified BSD License text as described in Section 4.e of 52 the Trust Legal Provisions and are provided without warranty as 53 described in the Simplified BSD License. 55 Table of Contents 57 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 58 1.1. ARIA . . . . . . . . . . . . . . . . . . . . . . . . . . 3 59 1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3 60 2. Cryptographic Transforms . . . . . . . . . . . . . . . . . . 3 61 2.1. ARIA-CTR . . . . . . . . . . . . . . . . . . . . . . . . 3 62 2.2. ARIA-GCM . . . . . . . . . . . . . . . . . . . . . . . . 6 63 2.3. ARIA-CCM . . . . . . . . . . . . . . . . . . . . . . . . 9 64 3. Key Derivation Functions . . . . . . . . . . . . . . . . . . 11 65 4. Security Considerations . . . . . . . . . . . . . . . . . . . 11 66 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 12 67 5.1. SDES . . . . . . . . . . . . . . . . . . . . . . . . . . 12 68 5.2. DTLS-SRTP . . . . . . . . . . . . . . . . . . . . . . . . 12 69 5.3. MIKEY . . . . . . . . . . . . . . . . . . . . . . . . . . 18 70 6. References . . . . . . . . . . . . . . . . . . . . . . . . . 19 71 6.1. Normative References . . . . . . . . . . . . . . . . . . 19 72 6.2. Informative References . . . . . . . . . . . . . . . . . 20 73 Appendix A. Test Vectors . . . . . . . . . . . . . . . . . . . . 20 74 A.1. ARIA-CTR Test Vectors . . . . . . . . . . . . . . . . . . 21 75 A.1.1. ARIA_128_CTR_HMAC_SHA1_80 . . . . . . . . . . . . . . 21 76 A.1.2. ARIA_192_CTR_HMAC_SHA1_80 . . . . . . . . . . . . . . 22 77 A.1.3. ARIA_256_CTR_HMAC_SHA1_80 . . . . . . . . . . . . . . 22 78 A.2. ARIA-GCM Test Vectors . . . . . . . . . . . . . . . . . . 23 79 A.2.1. ARIA_128_GCM . . . . . . . . . . . . . . . . . . . . 23 80 A.2.2. ARIA_256_GCM . . . . . . . . . . . . . . . . . . . . 24 81 A.3. ARIA-CCM Test Vectors . . . . . . . . . . . . . . . . . . 24 82 A.3.1. ARIA_128_CCM . . . . . . . . . . . . . . . . . . . . 25 83 A.3.2. ARIA_256_CCM . . . . . . . . . . . . . . . . . . . . 25 84 A.3.3. ARIA_128_CCM_8 . . . . . . . . . . . . . . . . . . . 26 85 A.3.4. ARIA_256_CCM_8 . . . . . . . . . . . . . . . . . . . 26 86 A.3.5. ARIA_128_CCM_12 . . . . . . . . . . . . . . . . . . . 26 87 A.3.6. ARIA_256_CCM_12 . . . . . . . . . . . . . . . . . . . 27 88 A.4. Key Derivation Test Vector . . . . . . . . . . . . . . . 27 89 A.4.1. ARIA_128 . . . . . . . . . . . . . . . . . . . . . . 27 90 A.4.2. ARIA_192 . . . . . . . . . . . . . . . . . . . . . . 29 91 A.4.3. ARIA_256 . . . . . . . . . . . . . . . . . . . . . . 30 93 1. Introduction 95 This document describes the use of the ARIA [RFC5794] block cipher 96 algorithm in the Secure Real-time Transport Protocol (SRTP) [RFC3711] 97 for providing confidentiality for the Real-time Transport Protocol 98 (RTP) [RFC3550] traffic and for the control traffic for RTP, the 99 Real-time Transport Control Protocol (RTCP) [RFC3550]. 101 1.1. ARIA 103 ARIA is a general-purpose block cipher algorithm developed by Korean 104 cryptographers in 2003. It is an iterated block cipher with 128-, 105 192-, and 256-bit keys and encrypts 128-bit blocks in 12, 14, and 16 106 rounds, depending on the key size. It is secure and suitable for 107 most software and hardware implementations on 32-bit and 8-bit 108 processors. It was established as a Korean standard block cipher 109 algorithm in 2004 [ARIAKS] and has been widely used in Korea, 110 especially for government-to-public services. It was included in 111 PKCS #11 in 2007 [ARIAPKCS]. The algorithm specification and object 112 identifiers are described in [RFC5794]. 114 1.2. Terminology 116 The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", 117 "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this 118 document are to be interpreted as described in [RFC2119]. 120 2. Cryptographic Transforms 122 Block ciphers ARIA and AES share common characteristics including 123 mode, key size, and block size. ARIA does not have any restrictions 124 for modes of operation that are used with this block cipher. We 125 define three modes of running ARIA within the SRTP protocol, (1) ARIA 126 in Counter Mode (ARIA-CTR), (2) ARIA in Counter with CBC-MAC Mode 127 (ARIA-CCM) and (3) ARIA in Galois/Counter Mode (ARIA-GCM). 129 2.1. ARIA-CTR 131 Section 4.1.1 of [RFC3711] defines AES-128 counter mode encryption, 132 which it refers to as "AES_CM". Section 2 of [RFC6188] defines 133 "AES_192_CM" and "AES_256_CM" in SRTP. ARIA counter modes are 134 defined in the same manner except that each invocation of AES is 135 replaced by that of ARIA, and are denoted by ARIA_128_CTR, 136 ARIA_192_CTR and ARIA_256_CTR respectively, according to the key 137 lengths. The plaintext inputs to the block cipher are formed as in 138 AES-CTR(AES_CM, AES_192_CM, AES_256_CM) and the block cipher outputs 139 are processed as in AES-CTR. 141 When ARIA-CTR is used, it MUST be used only in conjunction with an 142 authentication function. The ARIA-CTR crypto suites with HMAC-SHA1 143 as an authentication function are listed below. The authentication 144 key length of all crypto suites is 20 octets. 146 +---------------------------+-----------------+------------------+ 147 | Name | Enc. Key Length | Auth. Tag Length | 148 +---------------------------+-----------------+------------------+ 149 | ARIA_128_CTR_HMAC_SHA1_80 | 16 octets | 10 octets | 150 | ARIA_128_CTR_HMAC_SHA1_32 | 16 octets | 4 octets | 151 | ARIA_192_CTR_HMAC_SHA1_80 | 24 octets | 10 octets | 152 | ARIA_192_CTR_HMAC_SHA1_32 | 24 octets | 4 octets | 153 | ARIA_256_CTR_HMAC_SHA1_80 | 32 octets | 10 octets | 154 | ARIA_256_CTR_HMAC_SHA1_32 | 32 octets | 4 octets | 155 +---------------------------+-----------------+------------------+ 157 Table 1: ARIA-CTR Crypto Suites for SRTP/SRTCP 159 The parameters (from Table 2 to Table 7) in each crypto suite listed 160 in Table 1 are described for use with the SDP Security Descriptions 161 attributes [RFC4568]. 163 +---------------------------------+------------------------------+ 164 | Parameter | Value | 165 +---------------------------------+------------------------------+ 166 | Master key length | 128 bits | 167 | Master salt length | 112 bits | 168 | Key Derivation Function | ARIA_128_CTR_PRF (Section 3) | 169 | Default key lifetime | 2^31 packets | 170 | Cipher (for SRTP and SRTCP) | ARIA_128_CTR | 171 | SRTP authentication function | HMAC-SHA1 | 172 | SRTP authentication key length | 160 bits | 173 | SRTP authentication tag length | 80 bits | 174 | SRTCP authentication function | HMAC-SHA1 | 175 | SRTCP authentication key length | 160 bits | 176 | SRTCP authentication tag length | 80 bits | 177 +---------------------------------+------------------------------+ 179 Table 2: The ARIA_128_CTR_HMAC_SHA1_80 Crypto Suite 181 +---------------------------------+------------------------------+ 182 | Parameter | Value | 183 +---------------------------------+------------------------------+ 184 | Master key length | 128 bits | 185 | Master salt length | 112 bits | 186 | Key Derivation Function | ARIA_128_CTR_PRF (Section 3) | 187 | Default key lifetime | 2^31 packets | 188 | Cipher (for SRTP and SRTCP) | ARIA_128_CTR | 189 | SRTP authentication function | HMAC-SHA1 | 190 | SRTP authentication key length | 160 bits | 191 | SRTP authentication tag length | 32 bits | 192 | SRTCP authentication function | HMAC-SHA1 | 193 | SRTCP authentication key length | 160 bits | 194 | SRTCP authentication tag length | 80 bits | 195 +---------------------------------+------------------------------+ 197 Table 3: The ARIA_128_CTR_HMAC_SHA1_32 Crypto Suite 199 +---------------------------------+------------------------------+ 200 | Parameter | Value | 201 +---------------------------------+------------------------------+ 202 | Master key length | 192 bits | 203 | Master salt length | 112 bits | 204 | Key Derivation Function | ARIA_192_CTR_PRF (Section 3) | 205 | Default key lifetime | 2^31 packets | 206 | Cipher (for SRTP and SRTCP) | ARIA_192_CTR | 207 | SRTP authentication function | HMAC-SHA1 | 208 | SRTP authentication key length | 160 bits | 209 | SRTP authentication tag length | 80 bits | 210 | SRTCP authentication function | HMAC-SHA1 | 211 | SRTCP authentication key length | 160 bits | 212 | SRTCP authentication tag length | 80 bits | 213 +---------------------------------+------------------------------+ 215 Table 4: The ARIA_192_CTR_HMAC_SHA1_80 Crypto Suite 217 +---------------------------------+------------------------------+ 218 | Parameter | Value | 219 +---------------------------------+------------------------------+ 220 | Master key length | 192 bits | 221 | Master salt length | 112 bits | 222 | Key Derivation Function | ARIA_192_CTR_PRF (Section 3) | 223 | Default key lifetime | 2^31 packets | 224 | Cipher (for SRTP and SRTCP) | ARIA_192_CTR | 225 | SRTP authentication function | HMAC-SHA1 | 226 | SRTP authentication key length | 160 bits | 227 | SRTP authentication tag length | 32 bits | 228 | SRTCP authentication function | HMAC-SHA1 | 229 | SRTCP authentication key length | 160 bits | 230 | SRTCP authentication tag length | 80 bits | 231 +---------------------------------+------------------------------+ 233 Table 5: The ARIA_192_CTR_HMAC_SHA1_32 Crypto Suite 235 +---------------------------------+------------------------------+ 236 | Parameter | Value | 237 +---------------------------------+------------------------------+ 238 | Master key length | 256 bits | 239 | Master salt length | 112 bits | 240 | Key Derivation Function | ARIA_256_CTR_PRF (Section 3) | 241 | Default key lifetime | 2^31 packets | 242 | Cipher (for SRTP and SRTCP) | ARIA_256_CTR | 243 | SRTP authentication function | HMAC-SHA1 | 244 | SRTP authentication key length | 160 bits | 245 | SRTP authentication tag length | 80 bits | 246 | SRTCP authentication function | HMAC-SHA1 | 247 | SRTCP authentication key length | 160 bits | 248 | SRTCP authentication tag length | 80 bits | 249 +---------------------------------+------------------------------+ 251 Table 6: The ARIA_256_CTR_HMAC_SHA1_80 Crypto Suite 253 +---------------------------------+------------------------------+ 254 | Parameter | Value | 255 +---------------------------------+------------------------------+ 256 | Master key length | 256 bits | 257 | Master salt length | 112 bits | 258 | Key Derivation Function | ARIA_256_CTR_PRF (Section 3) | 259 | Default key lifetime | 2^31 packets | 260 | Cipher (for SRTP and SRTCP) | ARIA_256_CTR | 261 | SRTP authentication function | HMAC-SHA1 | 262 | SRTP authentication key length | 160 bits | 263 | SRTP authentication tag length | 32 bits | 264 | SRTCP authentication function | HMAC-SHA1 | 265 | SRTCP authentication key length | 160 bits | 266 | SRTCP authentication tag length | 80 bits | 267 +---------------------------------+------------------------------+ 269 Table 7: The ARIA_256_CTR_HMAC_SHA1_32 Crypto Suite 271 2.2. ARIA-GCM 273 GCM(Galois Counter Mode) [GCM][RFC5116] is a AEAD(authenticated 274 encryption with associated data) block cipher mode. A detailed 275 description of ARIA-GCM is defined similarly as AES-GCM found in 276 [RFC5116][RFC5282]. 278 The internet draft [I-D.ietf-avtcore-srtp-aes-gcm] describes the use 279 of AES-GCM with SRTP. The use of ARIA-GCM with SRTP is defined the 280 same as that of AES-GCM except that each invocation of AES is 281 replaced by ARIA. 283 The ARIA-GCM algorithms in Table 8 may be used with SRTP and SRTCP: 285 +----------------------+-----------------+------------------+ 286 | Name | Enc. Key Length | Auth. Tag Length | 287 +----------------------+-----------------+------------------+ 288 | AEAD_ARIA_128_GCM | 16 octets | 16 octets | 289 | AEAD_ARIA_256_GCM | 32 octets | 16 octets | 290 | AEAD_ARIA_128_GCM_8 | 16 octets | 8 octets | 291 | AEAD_ARIA_256_GCM_8 | 32 octets | 8 octets | 292 | AEAD_ARIA_128_GCM_12 | 16 octets | 12 octets | 293 | AEAD_ARIA_256_GCM_12 | 32 octets | 12 octets | 294 +----------------------+-----------------+------------------+ 296 Table 8: ARIA-GCM Crypto Suites for SRTP/SRTCP 298 The parameters (from Table 9 to Table 14) in each crypto suite listed 299 in Table 8 are described for use with the SDP Security Descriptions 300 attributes [RFC4568]. 302 +--------------------------------+------------------------------+ 303 | Parameter | Value | 304 +--------------------------------+------------------------------+ 305 | Master key length | 128 bits | 306 | Master salt length | 96 bits | 307 | Key Derivation Function | ARIA_128_CTR_PRF (Section 3) | 308 | Default key lifetime (SRTP) | 2^48 packets | 309 | Default key lifetime (SRTCP) | 2^31 packets | 310 | Cipher (for SRTP and SRTCP) | ARIA_128_GCM | 311 | AEAD authentication tag length | 128 bits | 312 +--------------------------------+------------------------------+ 314 Table 9: The AEAD_ARIA_128_GCM Crypto Suite 316 +--------------------------------+------------------------------+ 317 | Parameter | Value | 318 +--------------------------------+------------------------------+ 319 | Master key length | 256 bits | 320 | Master salt length | 96 bits | 321 | Key Derivation Function | ARIA_256_CTR_PRF (Section 3) | 322 | Default key lifetime (SRTP) | 2^48 packets | 323 | Default key lifetime (SRTCP) | 2^31 packets | 324 | Cipher (for SRTP and SRTCP) | ARIA_256_GCM | 325 | AEAD authentication tag length | 128 bits | 326 +--------------------------------+------------------------------+ 328 Table 10: The AEAD_ARIA_256_GCM Crypto Suite 330 +--------------------------------+------------------------------+ 331 | Parameter | Value | 332 +--------------------------------+------------------------------+ 333 | Master key length | 128 bits | 334 | Master salt length | 96 bits | 335 | Key Derivation Function | ARIA_128_CTR_PRF (Section 3) | 336 | Default key lifetime (SRTP) | 2^48 packets | 337 | Default key lifetime (SRTCP) | 2^31 packets | 338 | Cipher (for SRTP and SRTCP) | ARIA_128_GCM | 339 | AEAD authentication tag length | 64 bits | 340 +--------------------------------+------------------------------+ 342 Table 11: The AEAD_ARIA_128_GCM_8 Crypto Suite 344 +--------------------------------+------------------------------+ 345 | Parameter | Value | 346 +--------------------------------+------------------------------+ 347 | Master key length | 256 bits | 348 | Master salt length | 96 bits | 349 | Key Derivation Function | ARIA_256_CTR_PRF (Section 3) | 350 | Default key lifetime (SRTP) | 2^48 packets | 351 | Default key lifetime (SRTCP) | 2^31 packets | 352 | Cipher (for SRTP and SRTCP) | ARIA_256_GCM | 353 | AEAD authentication tag length | 64 bits | 354 +--------------------------------+------------------------------+ 356 Table 12: The AEAD_ARIA_256_GCM_8 Crypto Suite 358 +--------------------------------+------------------------------+ 359 | Parameter | Value | 360 +--------------------------------+------------------------------+ 361 | Master key length | 128 bits | 362 | Master salt length | 96 bits | 363 | Key Derivation Function | ARIA_128_CTR_PRF (Section 3) | 364 | Default key lifetime (SRTP) | 2^48 packets | 365 | Default key lifetime (SRTCP) | 2^31 packets | 366 | Cipher (for SRTP and SRTCP) | ARIA_128_GCM | 367 | AEAD authentication tag length | 96 bits | 368 +--------------------------------+------------------------------+ 370 Table 13: The AEAD_ARIA_128_GCM_12 Crypto Suite 372 +--------------------------------+------------------------------+ 373 | Parameter | Value | 374 +--------------------------------+------------------------------+ 375 | Master key length | 256 bits | 376 | Master salt length | 96 bits | 377 | Key Derivation Function | ARIA_256_CTR_PRF (Section 3) | 378 | Default key lifetime (SRTP) | 2^48 packets | 379 | Default key lifetime (SRTCP) | 2^31 packets | 380 | Cipher (for SRTP and SRTCP) | ARIA_256_GCM | 381 | AEAD authentication tag length | 96 bits | 382 +--------------------------------+------------------------------+ 384 Table 14: The AEAD_ARIA_256_GCM_12 Crypto Suite 386 2.3. ARIA-CCM 388 CCM(Counter with CBC-MAC) [RFC3610][RFC5116] is another AEAD block 389 cipher mode. A detailed description of ARIA-CCM is defined similarly 390 as AES-CCM found in [RFC5116] [RFC6655] 391 [I-D.ietf-avtcore-srtp-aes-gcm]. 393 The internet draft [I-D.ietf-avtcore-srtp-aes-gcm] describes the use 394 of AES-CCM with SRTP. The use of ARIA-CCM with SRTP is defined the 395 same as that of AES-CCM except that each invocation of AES is 396 replaced by ARIA. 398 The ARIA-CCM algorithms in Table 15 may be used with SRTP and SRTCP: 400 +----------------------+-----------------+------------------+ 401 | Name | Enc. Key Length | Auth. Tag Length | 402 +----------------------+-----------------+------------------+ 403 | AEAD_ARIA_128_CCM | 16 octets | 16 octets | 404 | AEAD_ARIA_256_CCM | 32 octets | 16 octets | 405 | AEAD_ARIA_128_CCM_8 | 16 octets | 8 octets | 406 | AEAD_ARIA_256_CCM_8 | 32 octets | 8 octets | 407 | AEAD_ARIA_128_CCM_12 | 16 octets | 12 octets | 408 | AEAD_ARIA_256_CCM_12 | 32 octets | 12 octets | 409 +----------------------+-----------------+------------------+ 411 Table 15: ARIA-CCM Crypto Suites for SRTP/SRTCP 413 The parameters (from Table 16 to Table 21) in each crypto suite 414 listed in Table 15 are described for use with the SDP Security 415 Descriptions attributes [RFC4568]. 417 +--------------------------------+------------------------------+ 418 | Parameter | Value | 419 +--------------------------------+------------------------------+ 420 | Master key length | 128 bits | 421 | Master salt length | 96 bits | 422 | Key Derivation Function | ARIA_128_CTR_PRF (Section 3) | 423 | Default key lifetime (SRTP) | 2^48 packets | 424 | Default key lifetime (SRTCP) | 2^31 packets | 425 | Cipher (for SRTP and SRTCP) | ARIA_128_CCM | 426 | AEAD authentication tag length | 128 bits | 427 +--------------------------------+------------------------------+ 429 Table 16: The AEAD_ARIA_128_CCM Crypto Suite 431 +--------------------------------+------------------------------+ 432 | Parameter | Value | 433 +--------------------------------+------------------------------+ 434 | Master key length | 256 bits | 435 | Master salt length | 96 bits | 436 | Key Derivation Function | ARIA_256_CTR_PRF (Section 3) | 437 | Default key lifetime (SRTP) | 2^48 packets | 438 | Default key lifetime (SRTCP) | 2^31 packets | 439 | Cipher (for SRTP and SRTCP) | ARIA_256_CCM | 440 | AEAD authentication tag length | 128 bits | 441 +--------------------------------+------------------------------+ 443 Table 17: The AEAD_ARIA_256_CCM Crypto Suite 445 +--------------------------------+------------------------------+ 446 | Parameter | Value | 447 +--------------------------------+------------------------------+ 448 | Master key length | 128 bits | 449 | Master salt length | 96 bits | 450 | Key Derivation Function | ARIA_128_CTR_PRF (Section 3) | 451 | Default key lifetime (SRTP) | 2^48 packets | 452 | Default key lifetime (SRTCP) | 2^31 packets | 453 | Cipher (for SRTP and SRTCP) | ARIA_128_CCM | 454 | AEAD authentication tag length | 64 bits | 455 +--------------------------------+------------------------------+ 457 Table 18: The AEAD_ARIA_128_CCM_8 Crypto Suite 459 +--------------------------------+------------------------------+ 460 | Parameter | Value | 461 +--------------------------------+------------------------------+ 462 | Master key length | 256 bits | 463 | Master salt length | 96 bits | 464 | Key Derivation Function | ARIA_256_CTR_PRF (Section 3) | 465 | Default key lifetime (SRTP) | 2^48 packets | 466 | Default key lifetime (SRTCP) | 2^31 packets | 467 | Cipher (for SRTP and SRTCP) | ARIA_256_CCM | 468 | AEAD authentication tag length | 64 bits | 469 +--------------------------------+------------------------------+ 471 Table 19: The AEAD_ARIA_256_CCM_8 Crypto Suite 473 +--------------------------------+------------------------------+ 474 | Parameter | Value | 475 +--------------------------------+------------------------------+ 476 | Master key length | 128 bits | 477 | Master salt length | 96 bits | 478 | Key Derivation Function | ARIA_128_CTR_PRF (Section 3) | 479 | Default key lifetime (SRTP) | 2^48 packets | 480 | Default key lifetime (SRTCP) | 2^31 packets | 481 | Cipher (for SRTP and SRTCP) | ARIA_128_CCM | 482 | AEAD authentication tag length | 96 bits | 483 +--------------------------------+------------------------------+ 485 Table 20: The AEAD_ARIA_128_CCM_12 Crypto Suite 487 +--------------------------------+------------------------------+ 488 | Parameter | Value | 489 +--------------------------------+------------------------------+ 490 | Master key length | 256 bits | 491 | Master salt length | 96 bits | 492 | Key Derivation Function | ARIA_256_CTR_PRF (Section 3) | 493 | Default key lifetime (SRTP) | 2^48 packets | 494 | Default key lifetime (SRTCP) | 2^31 packets | 495 | Cipher (for SRTP and SRTCP) | ARIA_256_CCM | 496 | AEAD authentication tag length | 96 bits | 497 +--------------------------------+------------------------------+ 499 Table 21: The AEAD_ARIA_256_CCM_12 Crypto Suite 501 3. Key Derivation Functions 503 Section 4.3.3 of [RFC3711] defines the AES-128 counter mode key 504 derivation function, which it refers to as "AES-CM PRF". Section 3 505 of [RFC6188] defines the AES-192 counter mode key derivation function 506 and the AES-256 counter mode key derivation function, which it refers 507 to as "AES_192_CM_PRF" and "AES_256_CM_PRF" respectively. The ARIA- 508 CTR PRF is defined in a same manner except that each invocation of 509 AES replaced by that of ARIA. According to the key lengths of 510 underlying encryption algorithm, ARIA-CTR PRFs are denoted by 511 "ARIA_128_CTR_PRF", "ARIA_192_CTR_PRF" and "ARIA_256_CTR_PRF". The 512 usage requirements of [RFC6188][I-D.ietf-avtcore-srtp-aes-gcm] 513 regarding the AES-CM PRF apply to the ARIA-CTR PRF as well. The PRFs 514 for ARIA crypto suites with SRTP are defined by ARIA-CTR PRF of the 515 equal key length with the encryption algorithm (see Section 2). 516 SRTP_ARIA_128_CTR_HMAC, SRTP_AEAD_ARIA_128_GCM, and 517 SRTP_AEAD_ARIA_128_CCM MUST use the ARIA_128_CTR_PRF Key Derivation 518 Function. SRTP_ARIA_192_CTR_HMAC MUST use that ARIA_192_CTR_PRF Key 519 Derivation Function. And SRTP_ARIA_256_CTR_HMAC, 520 SRTP_AEAD_ARIA_256_GCM, and SRTP_AEAD_ARIA_256_CCM MUST use the 521 ARIA_256_CTR_PRF Key Derivation Function. 523 4. Security Considerations 525 At the time of writing this document no security problem has been 526 found on ARIA (see [TSL]). 528 The security considerations in [RFC3610] [GCM] [RFC3711] [RFC5116] 529 [RFC6188] [I-D.ietf-avtcore-srtp-aes-gcm] apply to this document as 530 well. Ciphersuites with short tag length may be considered for 531 specific application environments stated in 7.5 of [RFC3711], but the 532 risk of weak authentication described in Section 9.5.1 of [RFC3711] 533 should be taken into account. 535 5. IANA Considerations 537 5.1. SDES 539 Security description [RFC4568] defines SRTP "crypto suites". In 540 order to allow SDP to signal the use of the algorithms defined in 541 this document, IANA is requested to add the below crypto suites to 542 the "SRTP Crypto Suite Registrations" created by [RFC4568], at time 543 of writing located on the following IANA page: http://www.iana.org/ 544 assignments/sdp-security-descriptions/sdp-security-descriptions.xml 545 #sdp-security-descriptions-3 [1] 547 srtp-crypto-suite-ext = "ARIA_128_CTR_HMAC_SHA1_80"/ 548 "ARIA_128_CTR_HMAC_SHA1_32"/ 549 "ARIA_192_CTR_HMAC_SHA1_80"/ 550 "ARIA_192_CTR_HMAC_SHA1_32"/ 551 "ARIA_256_CTR_HMAC_SHA1_80"/ 552 "ARIA_256_CTR_HMAC_SHA1_32"/ 553 "AEAD_ARIA_128_GCM" / 554 "AEAD_ARIA_256_GCM" / 555 "AEAD_ARIA_128_GCM_8" / 556 "AEAD_ARIA_256_GCM_8" / 557 "AEAD_ARIA_128_GCM_12" / 558 "AEAD_ARIA_256_GCM_12" / 559 "AEAD_ARIA_128_CCM" / 560 "AEAD_ARIA_256_CCM" / 561 "AEAD_ARIA_128_CCM_8" / 562 "AEAD_ARIA_256_CCM_8" / 563 "AEAD_ARIA_128_CCM_12" / 564 "AEAD_ARIA_256_CCM_12" / 565 srtp-crypto-suite-ext 567 5.2. DTLS-SRTP 569 DTLS-SRTP [RFC5764] defines a DTLS-SRTP "SRTP Protection Profile". 570 In order to allow the use of the algorithms defined in this document 571 in DTLS-SRTP, IANA is requested to add the below crypto suite to the 572 "DTLS-SRTP Protection Profiles" created by [RFC5764], at time of 573 writing located on the following IANA page: http://www.iana.org/ 574 assignments/srtp-protection/srtp-protection.xml#srtp-protection-1 [2] 576 SRTP_ARIA_128_CTR_HMAC_SHA1_80 = {TBD,TBD} 577 SRTP_ARIA_128_CTR_HMAC_SHA1_32 = {TBD,TBD} 578 SRTP_ARIA_192_CTR_HMAC_SHA1_80 = {TBD,TBD} 579 SRTP_ARIA_192_CTR_HMAC_SHA1_32 = {TBD,TBD} 580 SRTP_ARIA_256_CTR_HMAC_SHA1_80 = {TBD,TBD} 581 SRTP_ARIA_256_CTR_HMAC_SHA1_32 = {TBD,TBD} 582 SRTP_AEAD_ARIA_128_GCM = {TBD,TBD} 583 SRTP_AEAD_ARIA_256_GCM = {TBD,TBD} 584 SRTP_AEAD_ARIA_128_GCM_8 = {TBD,TBD} 585 SRTP_AEAD_ARIA_256_GCM_8 = {TBD,TBD} 586 SRTP_AEAD_ARIA_128_GCM_12 = {TBD,TBD} 587 SRTP_AEAD_ARIA_256_GCM_12 = {TBD,TBD} 588 SRTP_AEAD_ARIA_128_CCM = {TBD,TBD} 589 SRTP_AEAD_ARIA_256_CCM = {TBD,TBD} 590 SRTP_AEAD_ARIA_128_CCM_8 = {TBD,TBD} 591 SRTP_AEAD_ARIA_256_CCM_8 = {TBD,TBD} 592 SRTP_AEAD_ARIA_128_CCM_12 = {TBD,TBD} 593 SRTP_AEAD_ARIA_256_CCM_12 = {TBD,TBD} 595 The following list indicates the SRTP transform parameters for each 596 protection profile. The parameters cipher_key_length, 597 cipher_salt_length, auth_key_length, and auth_tag_length express the 598 number of bits in the values to which they refer. The 599 maximum_lifetime parameter indicates the maximum number of packets 600 that can be protected with each single set of keys when the parameter 601 profile is in use. All of these parameters apply to both RTP and 602 RTCP, unless the RTCP parameters are separately specified. 604 SRTP_ARIA_128_CTR_HMAC_SHA1_80 605 cipher: ARIA_128_CTR 606 cipher_key_length: 128 bits 607 cipher_salt_length: 112 bits 608 maximum_lifetime: 2^31 packets 609 key derivation function: ARIA_128_CTR_PRF 610 auth_function: HMAC-SHA1 611 auth_key_length: 160 bits 612 auth_tag_length: 80 bits 614 SRTP_ARIA_128_CTR_HMAC_SHA1_32 615 cipher: ARIA_128_CTR 616 cipher_key_length: 128 bits 617 cipher_salt_length: 112 bits 618 maximum_lifetime: 2^31 packets 619 key derivation function: ARIA_128_CTR_PRF 620 auth_function: HMAC-SHA1 621 auth_key_length: 160 bits 622 SRTP auth_tag_length: 32 bits 623 SRTCP auth_tag_length: 80 bits 625 SRTP_ARIA_192_CTR_HMAC_SHA1_80 626 cipher: ARIA_192_CTR 627 cipher_key_length: 192 bits 628 cipher_salt_length: 112 bits 629 maximum_lifetime: 2^31 packets 630 key derivation function: ARIA_192_CTR_PRF 631 auth_function: HMAC-SHA1 632 auth_key_length: 160 bits 633 auth_tag_length: 80 bits 635 SRTP_ARIA_192_CTR_HMAC_SHA1_32 636 cipher: ARIA_192_CTR 637 cipher_key_length: 192 bits 638 cipher_salt_length: 112 bits 639 maximum_lifetime: 2^31 packets 640 key derivation function: ARIA_192_CTR_PRF 641 auth_function: HMAC-SHA1 642 auth_key_length: 160 bits 643 SRTP auth_tag_length: 32 bits 644 SRTCP auth_tag_length: 80 bits 646 SRTP_ARIA_256_CTR_HMAC_SHA1_80 647 cipher: ARIA_256_CTR 648 cipher_key_length: 256 bits 649 cipher_salt_length: 112 bits 650 maximum_lifetime: 2^31 packets 651 key derivation function: ARIA_256_CTR_PRF 652 auth_function: HMAC-SHA 653 auth_key_length: 160 bits 654 auth_tag_length: 80 bits 656 SRTP_ARIA_256_CTR_HMAC_SHA1_32 657 cipher: ARIA_256_CTR 658 cipher_key_length: 128 bits 659 cipher_salt_length: 112 bits 660 maximum_lifetime: 2^31 packets 661 key derivation function: ARIA_256_CTR_PRF 662 auth_function: HMAC-SHA1 663 auth_key_length: 160 bits 664 SRTP auth_tag_length: 32 bits 665 SRTCP auth_tag_length: 80 bits 667 SRTP_AEAD_ARIA_128_CCM 668 cipher: ARIA_128_CCM 669 cipher_key_length: 128 bits 670 cipher_salt_length: 96 bits 671 aead_auth_tag_length: 128 bits 672 auth_function: NULL 673 auth_key_length: N/A 674 auth_tag_length: N/A 675 key derivation function: ARIA_128_CTR_PRF 676 maximum_lifetime: at most 2^31 SRTCP packets and 677 at most 2^48 SRTP packets 679 SRTP_AEAD_ARIA_256_CCM 680 cipher: ARIA_256_CCM 681 cipher_key_length: 256 bits 682 cipher_salt_length: 96 bits 683 aead_auth_tag_length: 128 bits 684 auth_function: NULL 685 auth_key_length: N/A 686 auth_tag_length: N/A 687 key derivation function: ARIA_256_CTR_PRF 688 maximum_lifetime: at most 2^31 SRTCP packets and 689 at most 2^48 SRTP packets 691 SRTP_AEAD_ARIA_128_CCM_8 692 cipher: ARIA_128_CCM 693 cipher_key_length: 128 bits 694 cipher_salt_length: 96 bits 695 aead_auth_tag_length: 64 bits 696 auth_function: NULL 697 auth_key_length: N/A 698 auth_tag_length: N/A 699 key derivation function: ARIA_128_CTR_PRF 700 maximum_lifetime: at most 2^31 SRTCP packets and 701 at most 2^48 SRTP packets 703 SRTP_AEAD_ARIA_256_CCM_8 704 cipher: ARIA_256_CCM 705 cipher_key_length: 256 bits 706 cipher_salt_length: 96 bits 707 aead_auth_tag_length: 64 bits 708 auth_function: NULL 709 auth_key_length: N/A 710 auth_tag_length: N/A 711 key derivation function: ARIA_256_CTR_PRF 712 maximum_lifetime: at most 2^31 SRTCP packets and 713 at most 2^48 SRTP packets 715 SRTP_AEAD_ARIA_128_CCM_12 716 cipher: ARIA_128_CCM 717 cipher_key_length: 128 bits 718 cipher_salt_length: 96 bits 719 aead_auth_tag_length: 96 bits 720 auth_function: NULL 721 auth_key_length: N/A 722 auth_tag_length: N/A 723 key derivation function: ARIA_128_CTR_PRF 724 maximum_lifetime: at most 2^31 SRTCP packets and 725 at most 2^48 SRTP packets 727 SRTP_AEAD_ARIA_256_CCM_12 728 cipher: ARIA_256_CCM 729 cipher_key_length: 256 bits 730 cipher_salt_length: 96 bits 731 aead_auth_tag_length: 96 bits 732 auth_function: NULL 733 auth_key_length: N/A 734 auth_tag_length: N/A 735 key derivation function: ARIA_256_CTR_PRF 736 maximum_lifetime: at most 2^31 SRTCP packets and 737 at most 2^48 SRTP packets 739 SRTP_AEAD_ARIA_128_GCM 740 cipher: ARIA_128_GCM 741 cipher_key_length: 128 bits 742 cipher_salt_length: 96 bits 743 aead_auth_tag_length: 128 bits 744 auth_function: NULL 745 auth_key_length: N/A 746 auth_tag_length: N/A 747 key derivation function: ARIA_128_CTR_PRF 748 maximum_lifetime: at most 2^31 SRTCP packets and 749 at most 2^48 SRTP packets 751 SRTP_AEAD_ARIA_256_GCM 752 cipher: ARIA_256_GCM 753 cipher_key_length: 256 bits 754 cipher_salt_length: 96 bits 755 aead_auth_tag_length: 128 bits 756 auth_function: NULL 757 auth_key_length: N/A 758 auth_tag_length: N/A 759 key derivation function: ARIA_256_CTR_PRF 760 maximum_lifetime: at most 2^31 SRTCP packets and 761 at most 2^48 SRTP packets 763 SRTP_AEAD_ARIA_128_GCM_8 764 cipher: ARIA_128_GCM 765 cipher_key_length: 128 bits 766 cipher_salt_length: 96 bits 767 aead_auth_tag_length: 64 bits 768 auth_function: NULL 769 auth_key_length: N/A 770 auth_tag_length: N/A 771 key derivation function: ARIA_128_CTR_PRF 772 maximum_lifetime: at most 2^31 SRTCP packets and 773 at most 2^48 SRTP packets 775 SRTP_AEAD_ARIA_256_GCM_8 776 cipher: ARIA_256_GCM 777 cipher_key_length: 256 bits 778 cipher_salt_length: 96 bits 779 aead_auth_tag_length: 64 bits 780 auth_function: NULL 781 auth_key_length: N/A 782 auth_tag_length: N/A 783 key derivation function: ARIA_256_CTR_PRF 784 maximum_lifetime: at most 2^31 SRTCP packets and 785 at most 2^48 SRTP packets 787 SRTP_AEAD_ARIA_128_GCM_12 788 cipher: ARIA_128_GCM 789 cipher_key_length: 128 bits 790 cipher_salt_length: 96 bits 791 aead_auth_tag_length: 96 bits 792 auth_function: NULL 793 auth_key_length: N/A 794 auth_tag_length: N/A 795 key derivation function: ARIA_128_CTR_PRF 796 maximum_lifetime: at most 2^31 SRTCP packets and 797 at most 2^48 SRTP packets 799 SRTP_AEAD_ARIA_256_GCM_12 800 cipher: ARIA_256_GCM 801 cipher_key_length: 256 bits 802 cipher_salt_length: 96 bits 803 aead_auth_tag_length: 96 bits 804 auth_function: NULL 805 auth_key_length: N/A 806 auth_tag_length: N/A 807 key derivation function: ARIA_256_CTR_PRF 808 maximum_lifetime: at most 2^31 SRTCP packets and 809 at most 2^48 SRTP packets 811 Note that these SRTP Protection Profiles do not specify an 812 auth_function, auth_key_length, or auth_tag_length because all of 813 these profiles use AEAD algorithms, and thus do not use a separate 814 auth_function, auth_key, or auth_tag. The term aead_auth_tag_length 815 is used to emphasize that this refers to the authentication tag 816 provided by the AEAD algorithm and that this tag is not located in 817 the authentication tag field provided by SRTP/SRTCP. 819 5.3. MIKEY 821 [RFC3830] and [RFC5748] define encryption algorithms and PRFs for the 822 SRTP policy in MIKEY. In order to allow the use of the algorithms 823 defined in this document in MIKEY, IANA is requested to add the below 824 crypto suites to the "MIKEY Security Protocol Parameters SRTP Type 0 825 (Encryption algorithm)" and to add the below PRF to the "MIKEY 826 Security Protocol Parameters SRTP Type 5 (Pseudo Random Function)" 827 created by [RFC3830], at time of writing located on the following 828 IANA page http://www.iana.org/assignments/mikey-payloads/mikey- 829 payloads.xml#mikey-payloads-26 [3] 831 +---------------+-------+ 832 | SRTP Enc. alg | Value | 833 +---------------+-------+ 834 | ARIA-CTR | TBD | 835 | ARIA-CCM | TBD | 836 | ARIA-GCM | TBD | 837 +---------------+-------+ 839 Default session encryption key length is 16 octets. 841 +----------+-------+ 842 | SRTP PRF | Value | 843 +----------+-------+ 844 | ARIA-CTR | TBD | 845 +----------+-------+ 847 MIKEY specifies the algorithm family separately from the key length 848 (which is specified by the Session Encryption key length) and the 849 authentication tag length (specified by AEAD authentication tag 850 length [I-D.ietf-avtcore-srtp-aes-gcm]). 852 +--------------------------------------+ 853 | Encryption | Encryption | AEAD Auth. | 854 | Algorithm | Key Length | Tag Length | 855 +======================================+ 856 SRTP_ARIA_128_CTR_HMAC_80 | ARIA-CTR | 16 octets | 80 bits | 857 SRTP_ARIA_128_CTR_HMAC_32 | ARIA-CTR | 16 octets | 32 bits | 858 SRTP_ARIA_192_CTR_HMAC_80 | ARIA-CTR | 24 octets | 80 bits | 859 SRTP_ARIA_192_CTR_HMAC_32 | ARIA-CTR | 24 octets | 32 bits | 860 SRTP_ARIA_256_CTR_HMAC_80 | ARIA-CTR | 32 octets | 80 bits | 861 SRTP_ARIA_256_CTR_HMAC_32 | ARIA-CTR | 32 octets | 32 bits | 862 SRTP_AEAD_ARIA_128_GCM | ARIA-GCM | 16 octets | 128 bits | 863 SRTP_AEAD_ARIA_128_CCM | ARIA-CCM | 16 octets | 128 bits | 864 SRTP_AEAD_ARIA_128_GCM_12 | ARIA-GCM | 16 octets | 96 bits | 865 SRTP_AEAD_ARIA_128_CCM_12 | ARIA-CCM | 16 octets | 96 bits | 866 SRTP_AEAD_ARIA_128_GCM_8 | ARIA-GCM | 16 octets | 64 bits | 867 SRTP_AEAD_ARIA_128_CCM_8 | ARIA-CCM | 16 octets | 64 bits | 868 SRTP_AEAD_ARIA_256_GCM | ARIA-GCM | 32 octets | 128 bits | 869 SRTP_AEAD_ARIA_256_CCM | ARIA-CCM | 32 octets | 128 bits | 870 SRTP_AEAD_ARIA_256_GCM_12 | ARIA-GCM | 32 octets | 96 bits | 871 SRTP_AEAD_ARIA_256_CCM_12 | ARIA-CCM | 32 octets | 96 bits | 872 SRTP_AEAD_ARIA_256_GCM_8 | ARIA-GCM | 32 octets | 64 bits | 873 SRTP_AEAD_ARIA_256_CCM_8 | ARIA-CCM | 32 octets | 64 bits | 874 +======================================+ 876 Figure 1: Mapping MIKEY parameters to AEAD algorithm 878 6. References 880 6.1. Normative References 882 [GCM] Dworkin, M., "Recommendation for Block Cipher Modes of 883 Operation: Galois/Counter Mode (GCM) and GMAC", NIST SP 884 800-38D, November 2007. 886 [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate 887 Requirement Levels", BCP 14, RFC 2119, March 1997. 889 [RFC3550] Schulzrinne, H., Casner, S., Frederick, R., and V. 890 Jacobson, "RTP: A Transport Protocol for Real-Time 891 Applications", STD 64, RFC 3550, July 2003. 893 [RFC3711] Baugher, M., McGrew, D., Naslund, M., Carrara, E., and K. 894 Norrman, "The Secure Real-time Transport Protocol (SRTP)", 895 RFC 3711, March 2004. 897 [RFC3830] Arkko, J., Carrara, E., Lindholm, F., Naslund, M., and K. 898 Norrman, "MIKEY: Multimedia Internet KEYing", RFC 3830, 899 August 2004. 901 [RFC4568] Andreasen, F., Baugher, M., and D. Wing, "Session 902 Description Protocol (SDP) Security Descriptions for Media 903 Streams", RFC 4568, July 2006. 905 [RFC5116] McGrew, D., "An Interface and Algorithms for Authenticated 906 Encryption", RFC 5116, January 2008. 908 [RFC5282] Black, D. and D. McGrew, "Using Authenticated Encryption 909 Algorithms with the Encrypted Payload of the Internet Key 910 Exchange version 2 (IKEv2) Protocol", RFC 5282, August 911 2008. 913 [RFC5764] McGrew, D. and E. Rescorla, "Datagram Transport Layer 914 Security (DTLS) Extension to Establish Keys for the Secure 915 Real-time Transport Protocol (SRTP)", RFC 5764, May 2010. 917 [RFC6188] McGrew, D., "The Use of AES-192 and AES-256 in Secure 918 RTP", RFC 6188, March 2011. 920 [RFC6655] McGrew, D. and D. Bailey, "AES-CCM Cipher Suites for 921 Transport Layer Security (TLS)", RFC 6655, July 2012. 923 6.2. Informative References 925 [ARIAKS] Korean Agency for Technology and Standards, "128 bit block 926 encryption algorithm ARIA - Part 1: General (in Korean)", 927 KS X 1213-1:2009, December 2009. 929 [ARIAPKCS] 930 RSA Laboratories, "Additional PKCS #11 Mechanisms", PKCS 931 #11 v2.20 Amendment 3 Revision 1, January 2007. 933 [I-D.ietf-avtcore-srtp-aes-gcm] 934 McGrew, D. and K. Igoe, "AES-GCM and AES-CCM Authenticated 935 Encryption in Secure RTP (SRTP)", draft-ietf-avtcore-srtp- 936 aes-gcm-06 (work in progress), May 2013. 938 [RFC3610] Whiting, D., Housley, R., and N. Ferguson, "Counter with 939 CBC-MAC (CCM)", RFC 3610, September 2003. 941 [RFC5748] Yoon, S., Jeong, J., Kim, H., Jeong, H., and Y. Won, "IANA 942 Registry Update for Support of the SEED Cipher Algorithm 943 in Multimedia Internet KEYing (MIKEY)", RFC 5748, August 944 2010. 946 [RFC5794] Lee, J., Lee, J., Kim, J., Kwon, D., and C. Kim, "A 947 Description of the ARIA Encryption Algorithm", RFC 5794, 948 March 2010. 950 [TSL] Tang, X., Sun, B., Li, R., Li, C., and J. Yin, "A meet-in- 951 the-middle attack on reduced-round ARIA", The Journal of 952 Systems and Software Vol.84(10), pp. 1685-1692, October 953 2011. 955 Appendix A. Test Vectors 957 All values are in hexadecimal. 959 A.1. ARIA-CTR Test Vectors 961 Common values are organized as follows: 963 Rollover Counter: 00000000 964 Sequence Number: 315e 965 SSRC: 20e8f5eb 966 Authentication Key: f93563311b354748c97891379553063116452309 967 Session Salt: cd3a7c42c671e0067a2a2639b43a 968 Initialization Vector: cd3a7c42e69915ed7a2a263985640000 969 RTP header: 8008315ebf2e6fe020e8f5eb 970 RTP Payload: f57af5fd4ae19562976ec57a5a7ad55a 971 5af5c5e5c5fdf5c55ad57a4a7272d572 972 62e9729566ed66e97ac54a4a5a7ad5e1 973 5ae5fdd5fd5ac5d56ae56ad5c572d54a 974 e54ac55a956afd6aed5a4ac562957a95 975 16991691d572fd14e97ae962ed7a9f4a 976 955af572e162f57a956666e17ae1f54a 977 95f566d54a66e16e4afd6a9f7ae1c5c5 978 5ae5d56afde916c5e94a6ec56695e14a 979 fde1148416e94ad57ac5146ed59d1cc5 981 A.1.1. ARIA_128_CTR_HMAC_SHA1_80 983 Session Key: 0c5ffd37a11edc42c325287fc0604f2e 985 Encrypted RTP Payload: 1bf753f412e6f35058cc398dc851aae3 986 a6ccdcb463fbed9cfb3de2fb76fdffa9 987 e481f5efb64c92487f59dabbc7cc72da 988 092485f3fbad87888820b86037311fa4 989 4330e18a59a1e1338ba2c21458493a57 990 463475c54691f91cec785429119e0dfc 991 d9048f90e07fecd50b528e8c62ee6e71 992 445de5d7f659405135aff3604c2ca4ff 993 4aaca40809cb9eee42cc4ad232307570 994 81ca289f2851d3315e9568b501fdce6d 996 Authenticated portion || Rollover Counter: 997 8008315ebf2e6fe020e8f5eb1bf753f4 998 12e6f35058cc398dc851aae3a6ccdcb4 999 63fbed9cfb3de2fb76fdffa9e481f5ef 1000 b64c92487f59dabbc7cc72da092485f3 1001 fbad87888820b86037311fa44330e18a 1002 59a1e1338ba2c21458493a57463475c5 1003 4691f91cec785429119e0dfcd9048f90 1004 e07fecd50b528e8c62ee6e71445de5d7 1005 f659405135aff3604c2ca4ff4aaca408 1006 09cb9eee42cc4ad23230757081ca289f 1007 2851d3315e9568b501fdce6d00000000 1009 Authentication Tag: f9de4e729054672b0e35 1011 A.1.2. ARIA_192_CTR_HMAC_SHA1_80 1013 Session Key: 0c5ffd37a11edc42c325287fc0604f2e 1014 3e8cd5671a00fe32 1016 Encrypted RTP Payload: 86f4556486642caa67e9b40fef2acda0 1017 6d442517d8d58c15e3e0b5c13a78b8b2 1018 838b7b96961e11acb2af81348272888c 1019 fd9d168ba091fe3e4f7f83c7871570a9 1020 aa9f995036e44c35cb742b601e8d8d08 1021 48320bad732929103f1bfbb1ae873178 1022 0479c5df2d4d41f78f6b96d6832db3db 1023 6af8b3612b27e18a0a29a8a1d280437e 1024 b8dad58e78658ec3b069d7329431c356 1025 c5e612b3dde5bd3f6c9f42f39cf35d3a 1027 Authenticated portion || Rollover Counter: 1028 8008315ebf2e6fe020e8f5eb86f45564 1029 86642caa67e9b40fef2acda06d442517 1030 d8d58c15e3e0b5c13a78b8b2838b7b96 1031 961e11acb2af81348272888cfd9d168b 1032 a091fe3e4f7f83c7871570a9aa9f9950 1033 36e44c35cb742b601e8d8d0848320bad 1034 732929103f1bfbb1ae8731780479c5df 1035 2d4d41f78f6b96d6832db3db6af8b361 1036 2b27e18a0a29a8a1d280437eb8dad58e 1037 78658ec3b069d7329431c356c5e612b3 1038 dde5bd3f6c9f42f39cf35d3a00000000 1040 Authentication Tag: 3935fa37ee96dbc550d5 1042 A.1.3. ARIA_256_CTR_HMAC_SHA1_80 1044 Session Key: 0c5ffd37a11edc42c325287fc0604f2e 1045 3e8cd5671a00fe3216aa5eb105783b54 1047 Encrypted RTP Payload: c424c59fd5696305e5b13d8e8ca76566 1048 17ccd7471088af9debf07b55c750f804 1049 a5ac2b737be48140958a9b420524112a 1050 e72e4da5bca59d2b1019ddd7dbdc30b4 1051 3d5f046152ced40947d62d2c93e7b8e5 1052 0f02db2b6b61b010e4c1566884de1fa9 1053 702cdf8157e8aedfe3dd77c76bb50c25 1054 ae4d624615c15acfdeeb5f79482aaa01 1055 d3e4c05eb601eca2bd10518e9d46b021 1056 16359232e9eac0fabd05235dd09e6dea 1058 Authenticated portion || Rollover Counter: 1059 8008315ebf2e6fe020e8f5ebc424c59f 1060 d5696305e5b13d8e8ca7656617ccd747 1061 1088af9debf07b55c750f804a5ac2b73 1062 7be48140958a9b420524112ae72e4da5 1063 bca59d2b1019ddd7dbdc30b43d5f0461 1064 52ced40947d62d2c93e7b8e50f02db2b 1065 6b61b010e4c1566884de1fa9702cdf81 1066 57e8aedfe3dd77c76bb50c25ae4d6246 1067 15c15acfdeeb5f79482aaa01d3e4c05e 1068 b601eca2bd10518e9d46b02116359232 1069 e9eac0fabd05235dd09e6dea00000000 1071 Authentication Tag: 192f515fab04bbb4e62c 1073 A.2. ARIA-GCM Test Vectors 1075 Common values are organized as follows: 1077 Rollover Counter: 00000000 1078 Sequence Number: 315e 1079 SSRC: 20e8f5eb 1080 Encryption Salt: 000000000000000000000000 1082 Initialization Vector: 000020e8f5eb00000000315e 1083 Payload: f57af5fd4ae19562976ec57a5a7ad55a 1084 5af5c5e5c5fdf5c55ad57a4a7272d572 1085 62e9729566ed66e97ac54a4a5a7ad5e1 1086 5ae5fdd5fd5ac5d56ae56ad5c572d54a 1087 e54ac55a956afd6aed5a4ac562957a95 1088 16991691d572fd14e97ae962ed7a9f4a 1089 955af572e162f57a956666e17ae1f54a 1090 95f566d54a66e16e4afd6a9f7ae1c5c5 1091 5ae5d56afde916c5e94a6ec56695e14a 1092 fde1148416e94ad57ac5146ed59d1cc5 1093 AAD: 8008315ebf2e6fe020e8f5eb 1095 A.2.1. ARIA_128_GCM 1096 Key: e91e5e75da65554a48181f3846349562 1098 Encrypted RTP Payload: 4d8a9a0675550c704b17d8c9ddc81a5c 1099 d6f7da34f2fe1b3db7cb3dfb9697102e 1100 a0f3c1fc2dbc873d44bceeae8e444297 1101 4ba21ff6789d3272613fb9631a7cf3f1 1102 4bacbeb421633a90ffbe58c2fa6bdca5 1103 34f10d0de0502ce1d531b6336e588782 1104 78531e5c22bc6c85bbd784d78d9e680a 1105 a19031aaf89101d669d7a3965c1f7e16 1106 229d7463e0535f4e253f5d18187d40b8 1107 ae0f564bd970b5e7e2adfb211e89a953 1109 Authentication Tag: 5abace3f37f5a736f4be984bbffbedc1 1111 A.2.2. ARIA_256_GCM 1113 Key: 0c5ffd37a11edc42c325287fc0604f2e 1114 3e8cd5671a00fe3216aa5eb105783b54 1116 Encrypted RTP Payload: 6f9e4bcbc8c85fc0128fb1e4a0a20cb9 1117 932ff74581f54fc013dd054b19f99371 1118 425b352d97d3f337b90b63d1b082adee 1119 ea9d2d7391897d591b985e55fb50cb53 1120 50cf7d38dc27dda127c078a149c8eb98 1121 083d66363a46e3726af217d3a00275ad 1122 5bf772c7610ea4c23006878f0ee69a83 1123 97703169a419303f40b72e4573714d19 1124 e2697df61e7c7252e5abc6bade876ac4 1125 961bfac4d5e867afca351a48aed52822 1127 Authentication Tag: e210d6ced2cf430ff841472915e7ef48 1129 A.3. ARIA-CCM Test Vectors 1131 Common values are organized as follows: 1133 Rollover Counter: 00000000 1134 Sequence Number: 315e 1135 SSRC: 20e8f5eb 1136 Encryption Salt: 000000000000000000000000 1138 Initialization Vector: 000020e8f5eb00000000315e 1139 Payload: f57af5fd4ae19562976ec57a5a7ad55a 1140 5af5c5e5c5fdf5c55ad57a4a7272d572 1141 62e9729566ed66e97ac54a4a5a7ad5e1 1142 5ae5fdd5fd5ac5d56ae56ad5c572d54a 1143 e54ac55a956afd6aed5a4ac562957a95 1144 16991691d572fd14e97ae962ed7a9f4a 1145 955af572e162f57a956666e17ae1f54a 1146 95f566d54a66e16e4afd6a9f7ae1c5c5 1147 5ae5d56afde916c5e94a6ec56695e14a 1148 fde1148416e94ad57ac5146ed59d1cc5 1149 AAD: 8008315ebf2e6fe020e8f5eb 1151 A.3.1. ARIA_128_CCM 1153 Key: 974bee725d44fc3992267b284c3c6750 1155 Encrypted RTP Payload: 621e408a2e455505b39f704dcbac4307 1156 daabbd6d670abc4e42f2fd2fca263f09 1157 4f4683e6fb0b10c5093d42b69dce0ba5 1158 46520e7c4400975713f3bde93ef13116 1159 0b9cbcd6df78a1502be7c6ea8d395b9e 1160 d0078819c3105c0ab92cb67b16ba51bb 1161 1f53508738bf7a37c9a905439b88b7af 1162 9d51a407916fdfea8d43bf253721846d 1163 c1671391225fc58d9d0693c8ade6a4ff 1164 b034ee6543dd4e651b7a084eae60f855 1166 Authentication Tag: 40f04b6467e300f6b336aedf9df4185b 1168 A.3.2. ARIA_256_CCM 1170 Key: 0c5ffd37a11edc42c325287fc0604f2e 1171 3e8cd5671a00fe3216aa5eb105783b54 1173 Encrypted RTP Payload: ff78128ee18ee3cb9fb0d20726a017ff 1174 67fbd09d3a4c38aa32f6d306d3fdda37 1175 8e459b83ed005507449d6cd981a4c1e3 1176 ff4193870c276ef09b6317a01a228320 1177 6ae4b4be0d0b235422c8abb001224106 1178 56b75e1ffc7fb49c0d0c5d6169aa7623 1179 610579968037aee8e83fc26264ea8665 1180 90fd620aa3c0a5f323d953aa7f8defb0 1181 d0d60ab5a9de44dbaf8eae74ea3ab5f3 1182 0594154f405fd630aa4c4d5603efdfa1 1184 Authentication Tag: 87b6bd222c55365a9c7d0b215b77ea41 1186 A.3.3. ARIA_128_CCM_8 1188 Key: 974bee725d44fc3992267b284c3c6750 1190 Encrypted RTP Payload: 621e408a2e455505b39f704dcbac4307 1191 daabbd6d670abc4e42f2fd2fca263f09 1192 4f4683e6fb0b10c5093d42b69dce0ba5 1193 46520e7c4400975713f3bde93ef13116 1194 0b9cbcd6df78a1502be7c6ea8d395b9e 1195 d0078819c3105c0ab92cb67b16ba51bb 1196 1f53508738bf7a37c9a905439b88b7af 1197 9d51a407916fdfea8d43bf253721846d 1198 c1671391225fc58d9d0693c8ade6a4ff 1199 b034ee6543dd4e651b7a084eae60f855 1201 Authentication Tag: dd2282c93a67fe4b 1203 A.3.4. ARIA_256_CCM_8 1205 Key: 0c5ffd37a11edc42c325287fc0604f2e 1206 3e8cd5671a00fe3216aa5eb105783b54 1208 Encrypted RTP Payload: ff78128ee18ee3cb9fb0d20726a017ff 1209 67fbd09d3a4c38aa32f6d306d3fdda37 1210 8e459b83ed005507449d6cd981a4c1e3 1211 ff4193870c276ef09b6317a01a228320 1212 6ae4b4be0d0b235422c8abb001224106 1213 56b75e1ffc7fb49c0d0c5d6169aa7623 1214 610579968037aee8e83fc26264ea8665 1215 90fd620aa3c0a5f323d953aa7f8defb0 1216 d0d60ab5a9de44dbaf8eae74ea3ab5f3 1217 0594154f405fd630aa4c4d5603efdfa1 1219 Authentication Tag: 828dc0088f99a7ef 1221 A.3.5. ARIA_128_CCM_12 1223 Key: 974bee725d44fc3992267b284c3c6750 1225 Encrypted RTP Payload: 621e408a2e455505b39f704dcbac4307 1226 daabbd6d670abc4e42f2fd2fca263f09 1227 4f4683e6fb0b10c5093d42b69dce0ba5 1228 46520e7c4400975713f3bde93ef13116 1229 0b9cbcd6df78a1502be7c6ea8d395b9e 1230 d0078819c3105c0ab92cb67b16ba51bb 1231 1f53508738bf7a37c9a905439b88b7af 1232 9d51a407916fdfea8d43bf253721846d 1233 c1671391225fc58d9d0693c8ade6a4ff 1234 b034ee6543dd4e651b7a084eae60f855 1236 Authentication Tag: 01f3dedd15238da5ebfb1590 1238 A.3.6. ARIA_256_CCM_12 1240 Key: 0c5ffd37a11edc42c325287fc0604f2e 1241 3e8cd5671a00fe3216aa5eb105783b54 1243 Encrypted RTP Payload: ff78128ee18ee3cb9fb0d20726a017ff 1244 67fbd09d3a4c38aa32f6d306d3fdda37 1245 8e459b83ed005507449d6cd981a4c1e3 1246 ff4193870c276ef09b6317a01a228320 1247 6ae4b4be0d0b235422c8abb001224106 1248 56b75e1ffc7fb49c0d0c5d6169aa7623 1249 610579968037aee8e83fc26264ea8665 1250 90fd620aa3c0a5f323d953aa7f8defb0 1251 d0d60ab5a9de44dbaf8eae74ea3ab5f3 1252 0594154f405fd630aa4c4d5603efdfa1 1254 Authentication Tag: 3615b7f90a651de15da20fb6 1256 A.4. Key Derivation Test Vector 1258 This section provides test vectors for the default key derivation 1259 function, which uses ARIA in Counter Mode. In the following, we walk 1260 through the initial key derivation for the ARIA Counter Mode cipher, 1261 which requires a 16/24/32 octet session encryption key according to 1262 the session encryption key length and a 14 octet session salt, and an 1263 authentication function which requires a 94 octet session 1264 authentication key. These values are called the cipher key, the 1265 cipher salt, and the auth key in the following. The test vectors are 1266 generated in the same way with the test vectors of key derivation 1267 functions in [RFC3711] and [RFC6188] but with each invocation of AES 1268 replaced with an invocation of ARIA. 1270 A.4.1. ARIA_128 1272 The inputs to the key derivation function are the 16 octet master key 1273 and the 14 octet master salt: 1275 master key: e1f97a0d3e018be0d64fa32c06de4139 1276 master salt: 0ec675ad498afeebb6960b3aabe6 1277 index DIV kdr: 000000000000 1278 label: 00 1279 master salt: 0ec675ad498afeebb6960b3aabe6 1280 ----------------------------------------------- 1281 xor: 0ec675ad498afeebb6960b3aabe6 (x, PRF input) 1283 x*2^16: 0ec675ad498afeebb6960b3aabe60000 (ARIA-CTR input) 1285 cipher key: dbd85a3c4d9219b3e81f7d942e299de4 (ARIA-CTR output) 1287 ARIA-CTR crypto suite requires 14 octet cipher salt while ARIA-CCM 1288 and ARIA-GCM crypto suites require 12 octet cipher salt. 1290 index DIV kdr: 000000000000 1291 label: 02 1292 master salt: 0ec675ad498afeebb6960b3aabe6 1293 ---------------------------------------------- 1294 xor: 0ec675ad498afee9b6960b3aabe6 (x, PRF input) 1296 x*2^16: 0ec675ad498afee9b6960b3aabe60000 (ARIA-CTR input) 1298 9700657f5f34161830d7d85f5dc8be7f (ARIA-CTR output) 1300 cipher salt: 9700657f5f34161830d7d85f5dc8 (ARIA-CTR cipher 1301 suite) 1302 9700657f5f34161830d7d85f (ARIA-CCM or 1303 ARIA-GCM cipher suite) 1304 index DIV kdr: 000000000000 1305 label: 01 1306 master salt: 0ec675ad498afeebb6960b3aabe6 1307 ----------------------------------------------- 1308 xor: 0ec675ad498afeeab6960b3aabe6 (x, PRF input) 1310 x*2^16: 0ec675ad498afeeab6960b3aabe60000 (ARIA-CTR input) 1312 Below, the auth key is shown on the left, while the corresponding 1313 ARIA input blocks are shown on the right. 1315 auth key ARIA input blocks 1317 d021877bd3eaf92d581ed70ddc050e03 0ec675ad498afeeab6960b3aabe60000 1318 f11257032676f2a29f57b21abd3a1423 0ec675ad498afeeab6960b3aabe60001 1319 769749bdc5dd9ca5b43ca6b6c1f3a7de 0ec675ad498afeeab6960b3aabe60002 1320 4047904bcf811f601cc03eaa5d7af6db 0ec675ad498afeeab6960b3aabe60003 1321 9f88efa2e51ca832fc2a15b126fa7be2 0ec675ad498afeeab6960b3aabe60004 1322 469af896acb1852c31d822c45799 0ec675ad498afeeab6960b3aabe60005 1324 A.4.2. ARIA_192 1326 The inputs to the key derivation function are the 24 octet master key 1327 and the 14 octet master salt: 1329 master key: 0c5ffd37a11edc42c325287fc0604f2e3e8cd5671a00fe32 1330 master salt: 0ec675ad498afeebb6960b3aabe6 1332 index DIV kdr: 000000000000 1333 label: 00 1334 master salt: 0ec675ad498afeebb6960b3aabe6 1335 ----------------------------------------------- 1336 xor: 0ec675ad498afeebb6960b3aabe6 (x, PRF input) 1338 x*2^16: 0ec675ad498afeebb6960b3aabe60000 (ARIA-CTR input) 1340 cipher key: f320af2386a1cde64c3aa5f55d68002e (ARIA-CTR 1st output) 1341 d13cbe548b627649 (ARIA-CTR 2nd Output) 1343 ARIA-CTR cipher suite requires 14 octet cipher salt while ARIA-CCM 1344 and ARIA-GCM cipher suites require 12 octet cipher salt. 1346 index DIV kdr: 000000000000 1347 label: 02 1348 master salt: 0ec675ad498afeebb6960b3aabe6 1349 ---------------------------------------------- 1350 xor: 0ec675ad498afee9b6960b3aabe6 (x, PRF input) 1352 x*2^16: 0ec675ad498afee9b6960b3aabe60000 (ARIA-CTR input) 1354 55c7e3555baf0fdc91c589cfb871b098 (ARIA-CTR output) 1356 cipher salt: 55c7e3555baf0fdc91c589cfb871 (ARIA-CTR cipher 1357 suite) 1358 55c7e3555baf0fdc91c589cf (ARIA-CCM or 1359 ARIA-GCM cipher suite) 1360 index DIV kdr: 000000000000 1361 label: 01 1362 master salt: 0ec675ad498afeebb6960b3aabe6 1363 ----------------------------------------------- 1364 xor: 0ec675ad498afeeab6960b3aabe6 (x, PRF input) 1366 x*2^16: 0ec675ad498afeeab6960b3aabe60000 (ARIA-CTR input) 1368 Below, the auth key is shown on the left, while the corresponding 1369 ARIA input blocks are shown on the right. 1371 auth key ARIA input blocks 1373 116902524517f7e767a979ad7678d53a 0ec675ad498afeeab6960b3aabe60000 1374 8cae05a5c9a315d1304f634c81a06617 0ec675ad498afeeab6960b3aabe60001 1375 31fe099d4dcd2202421fe01fc12c65ad 0ec675ad498afeeab6960b3aabe60002 1376 009e920031654855af5d9e820a7831e0 0ec675ad498afeeab6960b3aabe60003 1377 bc2b4744d2a33053eb685138252f2d82 0ec675ad498afeeab6960b3aabe60004 1378 9a89f4a9aa4f97fde0cce9bad3d5 0ec675ad498afeeab6960b3aabe60005 1380 A.4.3. ARIA_256 1382 The inputs to the key derivation function are the 32 octet master key 1383 and the 14 octet master salt: 1385 master key: 0c5ffd37a11edc42c325287fc0604f2e 1386 3e8cd5671a00fe3216aa5eb105783b54 1387 master salt: 0ec675ad498afeebb6960b3aabe6 1389 index DIV kdr: 000000000000 1390 label: 00 1391 master salt: 0ec675ad498afeebb6960b3aabe6 1392 ----------------------------------------------- 1393 xor: 0ec675ad498afeebb6960b3aabe6 (x, PRF input) 1395 x*2^16: 0ec675ad498afeebb6960b3aabe60000 (ARIA-CTR input) 1397 cipher key: 0649a09d93755fe9c2b2efba1cce930a (ARIA-CTR 1st output) 1398 f2e76ce8b77e4b175950321aa94b0cf4 (ARIA-CTR 2nd output) 1400 ARIA-CTR cipher suite requires 14 octet cipher salt while ARIA-CCM 1401 and ARIA-GCM cipher suites require 12 octet cipher salt. 1403 index DIV kdr: 000000000000 1404 label: 02 1405 master salt: 0ec675ad498afeebb6960b3aabe6 1406 ---------------------------------------------- 1407 xor: 0ec675ad498afee9b6960b3aabe6 (x, PRF input) 1409 x*2^16: 0ec675ad498afee9b6960b3aabe60000 (ARIA-CTR input) 1411 194abaa8553a8eba8a413a340fc80a3d (ARIA-CTR output) 1413 cipher salt: 194abaa8553a8eba8a413a340fc8 (ARIA-CTR cipher 1414 suite) 1415 194abaa8553a8eba8a413a34 (ARIA-CCM or 1416 ARIA-GCM cipher suite) 1418 index DIV kdr: 000000000000 1419 label: 01 1420 master salt: 0ec675ad498afeebb6960b3aabe6 1421 ----------------------------------------------- 1422 xor: 0ec675ad498afeeab6960b3aabe6 (x, PRF input) 1424 x*2^16: 0ec675ad498afeeab6960b3aabe60000 (ARIA-CTR input) 1426 Below, the auth key is shown on the left, while the corresponding 1427 ARIA input blocks are shown on the right. 1429 auth key ARIA input blocks 1431 e58d42915873b71899234807334658f2 0ec675ad498afeeab6960b3aabe60000 1432 0bc460181d06e02b7a9e60f02ff10bfc 0ec675ad498afeeab6960b3aabe60001 1433 9ade3795cf78f3e0f2556d9d913470c4 0ec675ad498afeeab6960b3aabe60002 1434 e82e45d254bfb8e2933851a3930ffe7d 0ec675ad498afeeab6960b3aabe60003 1435 fca751c03ec1e77e35e28dac4f17d1a5 0ec675ad498afeeab6960b3aabe60004 1436 80bdac028766d3b1e8f5a41faa3c 0ec675ad498afeeab6960b3aabe60005 1438 Authors' Addresses 1440 Woo-Hwan Kim 1441 National Security Research Institute 1442 P.O.Box 1, Yuseong 1443 Daejeon 305-350 1444 Korea 1446 EMail: whkim5@ensec.re.kr 1447 Jungkeun Lee 1448 National Security Research Institute 1449 P.O.Box 1, Yuseong 1450 Daejeon 305-350 1451 Korea 1453 EMail: jklee@ensec.re.kr 1455 Dong-Chan Kim 1456 National Security Research Institute 1457 P.O.Box 1, Yuseong 1458 Daejeon 305-350 1459 Korea 1461 EMail: dongchan@ensec.re.kr 1463 Je-Hong Park 1464 National Security Research Institute 1465 P.O.Box 1, Yuseong 1466 Daejeon 305-350 1467 Korea 1469 EMail: jhpark@ensec.re.kr 1471 Daesung Kwon 1472 National Security Research Institute 1473 P.O.Box 1, Yuseong 1474 Daejeon 305-350 1475 Korea 1477 EMail: ds_kwon@ensec.re.kr