Botan
1.11.15
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00001 /* 00002 * Hash Function Identification 00003 * (C) 1999-2008 Jack Lloyd 00004 * 00005 * Botan is released under the Simplified BSD License (see license.txt) 00006 */ 00007 00008 #include <botan/hash_id.h> 00009 #include <botan/exceptn.h> 00010 00011 namespace Botan { 00012 00013 namespace { 00014 00015 const byte MD2_PKCS_ID[] = { 00016 0x30, 0x20, 0x30, 0x0C, 0x06, 0x08, 0x2A, 0x86, 0x48, 0x86, 00017 0xF7, 0x0D, 0x02, 0x02, 0x05, 0x00, 0x04, 0x10 }; 00018 00019 const byte MD5_PKCS_ID[] = { 00020 0x30, 0x20, 0x30, 0x0C, 0x06, 0x08, 0x2A, 0x86, 0x48, 0x86, 00021 0xF7, 0x0D, 0x02, 0x05, 0x05, 0x00, 0x04, 0x10 }; 00022 00023 const byte RIPEMD_128_PKCS_ID[] = { 00024 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2B, 0x24, 0x03, 0x02, 00025 0x02, 0x05, 0x00, 0x04, 0x14 }; 00026 00027 const byte RIPEMD_160_PKCS_ID[] = { 00028 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2B, 0x24, 0x03, 0x02, 00029 0x01, 0x05, 0x00, 0x04, 0x14 }; 00030 00031 const byte SHA_160_PKCS_ID[] = { 00032 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2B, 0x0E, 0x03, 0x02, 00033 0x1A, 0x05, 0x00, 0x04, 0x14 }; 00034 00035 const byte SHA_224_PKCS_ID[] = { 00036 0x30, 0x2D, 0x30, 0x0D, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 00037 0x65, 0x03, 0x04, 0x02, 0x04, 0x05, 0x00, 0x04, 0x1C }; 00038 00039 const byte SHA_256_PKCS_ID[] = { 00040 0x30, 0x31, 0x30, 0x0D, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 00041 0x65, 0x03, 0x04, 0x02, 0x01, 0x05, 0x00, 0x04, 0x20 }; 00042 00043 const byte SHA_384_PKCS_ID[] = { 00044 0x30, 0x41, 0x30, 0x0D, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 00045 0x65, 0x03, 0x04, 0x02, 0x02, 0x05, 0x00, 0x04, 0x30 }; 00046 00047 const byte SHA_512_PKCS_ID[] = { 00048 0x30, 0x51, 0x30, 0x0D, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 00049 0x65, 0x03, 0x04, 0x02, 0x03, 0x05, 0x00, 0x04, 0x40 }; 00050 00051 const byte TIGER_PKCS_ID[] = { 00052 0x30, 0x29, 0x30, 0x0D, 0x06, 0x09, 0x2B, 0x06, 0x01, 0x04, 00053 0x01, 0xDA, 0x47, 0x0C, 0x02, 0x05, 0x00, 0x04, 0x18 }; 00054 00055 } 00056 00057 /* 00058 * HashID as specified by PKCS 00059 */ 00060 std::vector<byte> pkcs_hash_id(const std::string& name) 00061 { 00062 // Special case for SSL/TLS RSA signatures 00063 if(name == "Parallel(MD5,SHA-160)") 00064 return std::vector<byte>(); 00065 00066 if(name == "MD2") 00067 return std::vector<byte>(MD2_PKCS_ID, 00068 MD2_PKCS_ID + sizeof(MD2_PKCS_ID)); 00069 00070 if(name == "MD5") 00071 return std::vector<byte>(MD5_PKCS_ID, 00072 MD5_PKCS_ID + sizeof(MD5_PKCS_ID)); 00073 00074 if(name == "RIPEMD-128") 00075 return std::vector<byte>(RIPEMD_128_PKCS_ID, 00076 RIPEMD_128_PKCS_ID + sizeof(RIPEMD_128_PKCS_ID)); 00077 00078 if(name == "RIPEMD-160") 00079 return std::vector<byte>(RIPEMD_160_PKCS_ID, 00080 RIPEMD_160_PKCS_ID + sizeof(RIPEMD_160_PKCS_ID)); 00081 00082 if(name == "SHA-160") 00083 return std::vector<byte>(SHA_160_PKCS_ID, 00084 SHA_160_PKCS_ID + sizeof(SHA_160_PKCS_ID)); 00085 00086 if(name == "SHA-224") 00087 return std::vector<byte>(SHA_224_PKCS_ID, 00088 SHA_224_PKCS_ID + sizeof(SHA_224_PKCS_ID)); 00089 00090 if(name == "SHA-256") 00091 return std::vector<byte>(SHA_256_PKCS_ID, 00092 SHA_256_PKCS_ID + sizeof(SHA_256_PKCS_ID)); 00093 00094 if(name == "SHA-384") 00095 return std::vector<byte>(SHA_384_PKCS_ID, 00096 SHA_384_PKCS_ID + sizeof(SHA_384_PKCS_ID)); 00097 00098 if(name == "SHA-512") 00099 return std::vector<byte>(SHA_512_PKCS_ID, 00100 SHA_512_PKCS_ID + sizeof(SHA_512_PKCS_ID)); 00101 00102 if(name == "Tiger(24,3)") 00103 return std::vector<byte>(TIGER_PKCS_ID, 00104 TIGER_PKCS_ID + sizeof(TIGER_PKCS_ID)); 00105 00106 throw Invalid_Argument("No PKCS #1 identifier for " + name); 00107 } 00108 00109 /* 00110 * HashID as specified by IEEE 1363/X9.31 00111 */ 00112 byte ieee1363_hash_id(const std::string& name) 00113 { 00114 if(name == "SHA-160") return 0x33; 00115 00116 if(name == "SHA-224") return 0x38; 00117 if(name == "SHA-256") return 0x34; 00118 if(name == "SHA-384") return 0x36; 00119 if(name == "SHA-512") return 0x35; 00120 00121 if(name == "RIPEMD-160") return 0x31; 00122 if(name == "RIPEMD-128") return 0x32; 00123 00124 if(name == "Whirlpool") return 0x37; 00125 00126 return 0; 00127 } 00128 00129 }