diff options
Diffstat (limited to 'cipher/sha256.c')
| -rw-r--r-- | cipher/sha256.c | 54 |
1 files changed, 48 insertions, 6 deletions
diff --git a/cipher/sha256.c b/cipher/sha256.c index 2391a5b5..754f4591 100644 --- a/cipher/sha256.c +++ b/cipher/sha256.c @@ -1,5 +1,5 @@ /* sha256.c - SHA256 hash function - * Copyright (C) 2003 Free Software Foundation, Inc. + * Copyright (C) 2003, 2006 Free Software Foundation, Inc. * * This file is part of Libgcrypt. * @@ -22,13 +22,16 @@ /* Test vectors: "abc" - ba7816bf 8f01cfea 414140de 5dae2223 b00361a3 96177a9c b410ff61 f20015ad + SHA224: 23097d22 3405d822 8642a477 bda255b3 2aadbce4 bda0b3f7 e36c9da7 + SHA256: ba7816bf 8f01cfea 414140de 5dae2223 b00361a3 96177a9c b410ff61 f20015ad "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" - 248d6a61 d20638b8 e5c02693 0c3e6039 a33ce459 64ff2167 f6ecedd4 19db06c1 + SHA224: 75388b16 512776cc 5dba5da1 fd890150 b0c6455c b4f58b19 52522525 + SHA256: 248d6a61 d20638b8 e5c02693 0c3e6039 a33ce459 64ff2167 f6ecedd4 19db06c1 "a" one million times - cdc76e5c 9914fb92 81a1c7e2 84d73e67 f1809a48 a497200e 046d39cc c7112cd0 + SHA224: 20794655 980c91d8 bbb4c1ea 97618a4b f03f4258 1948b2ee 4ee7ad67 + SHA256: cdc76e5c 9914fb92 81a1c7e2 84d73e67 f1809a48 a497200e 046d39cc c7112cd0 */ @@ -70,6 +73,25 @@ sha256_init (void *context) } +static void +sha224_init (void *context) +{ + SHA256_CONTEXT *hd = context; + + hd->h0 = 0xc1059ed8; + hd->h1 = 0x367cd507; + hd->h2 = 0x3070dd17; + hd->h3 = 0xf70e5939; + hd->h4 = 0xffc00b31; + hd->h5 = 0x68581511; + hd->h6 = 0x64f98fa7; + hd->h7 = 0xbefa4fa4; + + hd->nblocks = 0; + hd->count = 0; +} + + /* Transform the message X which consists of 16 32-bit-words. See FIPS 180-2 for details. */ @@ -290,7 +312,20 @@ sha256_read (void *context) return hd->buf; } -static byte asn[19] = /* Object ID is 2.16.840.1.101.3.4.2.1 */ +static byte asn224[19] = /* Object ID is 2.16.840.1.101.3.4.2.4 */ + { 0x30, 0x31, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, + 0x01, 0x65, 0x03, 0x04, 0x02, 0x04, 0x05, 0x00, 0x04, + 0x20 + }; + +static gcry_md_oid_spec_t oid_spec_sha224[] = + { + /* From RFC3874, Section 4 */ + { "2.16.840.1.101.3.4.2.4" }, + { NULL }, + }; + +static byte asn256[19] = /* Object ID is 2.16.840.1.101.3.4.2.1 */ { 0x30, 0x31, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x05, 0x00, 0x04, 0x20 }; @@ -302,9 +337,16 @@ static gcry_md_oid_spec_t oid_spec_sha256[] = { NULL }, }; +gcry_md_spec_t _gcry_digest_spec_sha224 = + { + "SHA224", asn224, DIM (asn224), oid_spec_sha224, 28, + sha224_init, sha256_write, sha256_final, sha256_read, + sizeof (SHA256_CONTEXT) + }; + gcry_md_spec_t _gcry_digest_spec_sha256 = { - "SHA256", asn, DIM (asn), oid_spec_sha256, 32, + "SHA256", asn256, DIM (asn256), oid_spec_sha256, 32, sha256_init, sha256_write, sha256_final, sha256_read, sizeof (SHA256_CONTEXT) }; |