1 files changed, 105 insertions, 0 deletions
diff --git a/src/hash_id.cpp b/src/hash_id.cpp
new file mode 100644
index 000000000..bc5c64b98
--- /dev/null
+++ b/src/hash_id.cpp
@@ -0,0 +1,105 @@
+/*************************************************
+* Hash Function Identification Source File       *
+* (C) 1999-2006 The Botan Project                *
+*************************************************/
+
+#include <botan/hash_id.h>
+#include <botan/lookup.h>
+
+namespace Botan {
+
+namespace PKCS_IDS {
+
+const byte MD2_ID[] = {
+0x30, 0x20, 0x30, 0x0C, 0x06, 0x08, 0x2A, 0x86, 0x48, 0x86,
+0xF7, 0x0D, 0x02, 0x02, 0x05, 0x00, 0x04, 0x10 };
+
+const byte MD5_ID[] = {
+0x30, 0x20, 0x30, 0x0C, 0x06, 0x08, 0x2A, 0x86, 0x48, 0x86,
+0xF7, 0x0D, 0x02, 0x05, 0x05, 0x00, 0x04, 0x10 };
+
+const byte RIPEMD_128_ID[] = {
+0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2B, 0x24, 0x03, 0x02,
+0x02, 0x05, 0x00, 0x04, 0x14 };
+
+const byte RIPEMD_160_ID[] = {
+0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2B, 0x24, 0x03, 0x02,
+0x01, 0x05, 0x00, 0x04, 0x14 };
+
+const byte SHA_160_ID[] = {
+0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2B, 0x0E, 0x03, 0x02,
+0x1A, 0x05, 0x00, 0x04, 0x14 };
+
+const byte SHA_256_ID[] = {
+0x30, 0x31, 0x30, 0x0D, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01,
+0x65, 0x03, 0x04, 0x02, 0x01, 0x05, 0x00, 0x04, 0x20 };
+
+const byte SHA_384_ID[] = {
+0x30, 0x41, 0x30, 0x0D, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01,
+0x65, 0x03, 0x04, 0x02, 0x02, 0x05, 0x00, 0x04, 0x30 };
+
+const byte SHA_512_ID[] = {
+0x30, 0x31, 0x30, 0x0D, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01,
+0x65, 0x03, 0x04, 0x02, 0x03, 0x05, 0x00, 0x04, 0x40 };
+
+const byte TIGER_ID[] = {
+0x30, 0x29, 0x30, 0x0D, 0x06, 0x09, 0x2B, 0x06, 0x01, 0x04,
+0x01, 0xDA, 0x47, 0x0C, 0x02, 0x05, 0x00, 0x04, 0x18 };
+
+}
+
+/*************************************************
+* Return the HashID, as specified by PKCS        *
+*************************************************/
+MemoryVector<byte> pkcs_hash_id(const std::string& name_or_alias)
+   {
+   const std::string name = deref_alias(name_or_alias);
+
+   MemoryVector<byte> out;
+
+   if(name == "Parallel(MD5,SHA-160)")
+      return out;
+
+   if(name == "MD2")
+      out.set(PKCS_IDS::MD2_ID, sizeof(PKCS_IDS::MD2_ID));
+   else if(name == "MD5")
+      out.set(PKCS_IDS::MD5_ID, sizeof(PKCS_IDS::MD5_ID));
+   else if(name == "RIPEMD-128")
+      out.set(PKCS_IDS::RIPEMD_128_ID, sizeof(PKCS_IDS::RIPEMD_128_ID));
+   else if(name == "RIPEMD-160")
+      out.set(PKCS_IDS::RIPEMD_160_ID, sizeof(PKCS_IDS::RIPEMD_160_ID));
+   else if(name == "SHA-160")
+      out.set(PKCS_IDS::SHA_160_ID, sizeof(PKCS_IDS::SHA_160_ID));
+   else if(name == "SHA-256")
+      out.set(PKCS_IDS::SHA_256_ID, sizeof(PKCS_IDS::SHA_256_ID));
+   else if(name == "SHA-384")
+      out.set(PKCS_IDS::SHA_384_ID, sizeof(PKCS_IDS::SHA_384_ID));
+   else if(name == "SHA-512")
+      out.set(PKCS_IDS::SHA_512_ID, sizeof(PKCS_IDS::SHA_512_ID));
+   else if(name == "Tiger(24,3)")
+      out.set(PKCS_IDS::TIGER_ID, sizeof(PKCS_IDS::TIGER_ID));
+
+   if(out.size())
+      return out;
+
+   throw Invalid_Argument("No PKCS #1 identifier for " + name_or_alias);
+   }
+
+/*************************************************
+* Return the HashID, as specified by IEEE 1363   *
+*************************************************/
+byte ieee1363_hash_id(const std::string& name_or_alias)
+   {
+   const std::string name = deref_alias(name_or_alias);
+
+   if(name == "RIPEMD-160") return 0x31;
+   if(name == "RIPEMD-128") return 0x32;
+   if(name == "SHA-160")    return 0x33;
+   if(name == "SHA-256")    return 0x34;
+   if(name == "SHA-512")    return 0x35;
+   if(name == "SHA-384")    return 0x36;
+   if(name == "Whirlpool")  return 0x37;
+   return 0;
+   }
+
+}