/* * Algorithm Identifier * (C) 1999-2007 Jack Lloyd * * Distributed under the terms of the Botan license */ #include #include #include #include namespace Botan { /* * Create an AlgorithmIdentifier */ AlgorithmIdentifier::AlgorithmIdentifier(const OID& alg_id, const MemoryRegion& param) { oid = alg_id; parameters = param; } /* * Create an AlgorithmIdentifier */ AlgorithmIdentifier::AlgorithmIdentifier(const std::string& alg_id, const MemoryRegion& param) { oid = OIDS::lookup(alg_id); parameters = param; } /* * Create an AlgorithmIdentifier */ AlgorithmIdentifier::AlgorithmIdentifier(const OID& alg_id, Encoding_Option option) { const byte DER_NULL[] = { 0x05, 0x00 }; oid = alg_id; if(option == USE_NULL_PARAM) parameters.append(DER_NULL, sizeof(DER_NULL)); } /* * Create an AlgorithmIdentifier */ AlgorithmIdentifier::AlgorithmIdentifier(const std::string& alg_id, Encoding_Option option) { const byte DER_NULL[] = { 0x05, 0x00 }; oid = OIDS::lookup(alg_id); if(option == USE_NULL_PARAM) parameters.append(DER_NULL, sizeof(DER_NULL)); } /* * Compare two AlgorithmIdentifiers */ bool operator==(const AlgorithmIdentifier& a1, const AlgorithmIdentifier& a2) { if(a1.oid != a2.oid) return false; if(a1.parameters != a2.parameters) return false; return true; } /* * Compare two AlgorithmIdentifiers */ bool operator!=(const AlgorithmIdentifier& a1, const AlgorithmIdentifier& a2) { return !(a1 == a2); } /* * DER encode an AlgorithmIdentifier */ void AlgorithmIdentifier::encode_into(DER_Encoder& codec) const { codec.start_cons(SEQUENCE) .encode(oid) .raw_bytes(parameters) .end_cons(); } /* * Decode a BER encoded AlgorithmIdentifier */ void AlgorithmIdentifier::decode_from(BER_Decoder& codec) { codec.start_cons(SEQUENCE) .decode(oid) .raw_bytes(parameters) .end_cons(); } }