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Added function to convert integrity algorithms to hash algorithms (if based on one).

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This commit is contained in:
Tobias Brunner
2012-06-11 17:33:28 +02:00
parent 82e526ce81
commit cc55783f36
2 changed files with 50 additions and 4 deletions
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src/libstrongswan/crypto/hashers/hasher.c
+39 -2
View File
@@ -1,7 +1,7 @@
/*
* Copyright (C) 2005 Jan Hutter
* Copyright (C) 2012 Tobias Brunner
* Copyright (C) 2005-2006 Martin Willi
*
* Copyright (C) 2005 Jan Hutter
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
@@ -65,6 +65,43 @@ hash_algorithm_t hasher_algorithm_from_oid(int oid)
}
}
/*
* Described in header.
*/
hash_algorithm_t hasher_algorithm_from_integrity(integrity_algorithm_t integrity)
{
switch (integrity)
{
case AUTH_HMAC_MD5_96:
case AUTH_HMAC_MD5_128:
case AUTH_KPDK_MD5:
return HASH_MD5;
case AUTH_HMAC_SHA1_96:
case AUTH_HMAC_SHA1_128:
case AUTH_HMAC_SHA1_160:
return HASH_SHA1;
case AUTH_HMAC_SHA2_256_96:
case AUTH_HMAC_SHA2_256_128:
case AUTH_HMAC_SHA2_256_256:
return HASH_SHA256;
case AUTH_HMAC_SHA2_384_192:
case AUTH_HMAC_SHA2_384_384:
return HASH_SHA384;
case AUTH_HMAC_SHA2_512_256:
return HASH_SHA512;
case AUTH_AES_CMAC_96:
case AUTH_AES_128_GMAC:
case AUTH_AES_192_GMAC:
case AUTH_AES_256_GMAC:
case AUTH_AES_XCBC_96:
case AUTH_DES_MAC:
case AUTH_CAMELLIA_XCBC_96:
case AUTH_UNDEFINED:
break;
}
return HASH_UNKNOWN;
}
/*
* Described in header.
*/
src/libstrongswan/crypto/hashers/hasher.h
+11 -2
View File
@@ -1,7 +1,7 @@
/*
* Copyright (C) 2005 Jan Hutter
* Copyright (C) 2012 Tobias Brunner
* Copyright (C) 2005-2006 Martin Willi
*
* Copyright (C) 2005 Jan Hutter
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
@@ -27,6 +27,7 @@ typedef enum hash_algorithm_t hash_algorithm_t;
typedef struct hasher_t hasher_t;
#include <library.h>
#include <crypto/signers/signer.h>
#include <credentials/keys/public_key.h>
/**
@@ -118,6 +119,14 @@ struct hasher_t {
*/
hash_algorithm_t hasher_algorithm_from_oid(int oid);
/**
* Conversion of integrity algorithm to hash algorithm (if based on one).
*
* @param integrity integrity algorithm
* @return hash algorithm, HASH_UNKNOWN if not based on a hash
*/
hash_algorithm_t hasher_algorithm_from_integrity(integrity_algorithm_t integrity);
/**
* Conversion of hash algorithm into ASN.1 OID.
*