diff options
author | Dr. Stephen Henson <steve@openssl.org> | 2006-09-21 13:04:43 +0000 |
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committer | Dr. Stephen Henson <steve@openssl.org> | 2006-09-21 13:04:43 +0000 |
commit | 926c41bd293461df485e1ccde391ef471abf86c1 (patch) | |
tree | 38fb7da2421faf174a9cb9cdd055c8dabfa2739d /engines/ccgost/gost_keywrap.h | |
parent | 1182301ca725de1b01371d0fb9b27ae2414c21c2 (diff) |
Updated version of gost engine.
Diffstat (limited to 'engines/ccgost/gost_keywrap.h')
-rw-r--r-- | engines/ccgost/gost_keywrap.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/engines/ccgost/gost_keywrap.h b/engines/ccgost/gost_keywrap.h new file mode 100644 index 0000000000..37c2a0f73d --- /dev/null +++ b/engines/ccgost/gost_keywrap.h @@ -0,0 +1,56 @@ +/********************************************************************** + * gost_keywrap.h * + * Copyright (c) 2005-2006 Cryptocom LTD * + * This file is distributed under the same license as OpenSSL * + * * + * Implementation of CryptoPro key wrap algorithm, as defined in * + * RFC 4357 p 6.3 and 6.4 * + * Doesn't need OpenSSL * + **********************************************************************/ +#ifndef GOST_KEYWRAP_H +#define GOST_KEYWRAP_H +#include <string.h> +#include "gost89.h" +/* Diversifies key using random UserKey Material + * Implements RFC 4357 p 6.5 key diversification algorithm + * + * inputKey - 32byte key to be diversified + * ukm - 8byte user key material + * outputKey - 32byte buffer to store diversified key + * + */ +void keyDiversifyCryptoPro(gost_ctx *ctx, + const unsigned char *inputKey, + const unsigned char *ukm, + unsigned char *outputKey); +/* + * Wraps key using RFC 4357 6.3 + * ctx - gost encryption context, initialized with some S-boxes + * keyExchangeKey (KEK) 32-byte (256-bit) shared key + * ukm - 8 byte (64 bit) user key material, + * sessionKey - 32-byte (256-bit) key to be wrapped + * wrappedKey - 44-byte buffer to store wrapped key + */ + +int keyWrapCryptoPro(gost_ctx *ctx, + const unsigned char *keyExchangeKey, + const unsigned char *ukm, + const unsigned char *sessionKey, + unsigned char *wrappedKey) ; +/* + * Unwraps key using RFC 4357 6.4 + * ctx - gost encryption context, initialized with some S-boxes + * keyExchangeKey 32-byte shared key + * wrappedKey 44 byte key to be unwrapped (concatenation of 8-byte UKM, + * 32 byte encrypted key and 4 byte MAC + * + * sessionKEy - 32byte buffer to store sessionKey in + * Returns 1 if key is decrypted successfully, and 0 if MAC doesn't match + */ + + +int keyUnwrapCryptoPro(gost_ctx *ctx, + const unsigned char *keyExchangeKey, + const unsigned char *wrappedKey, + unsigned char *sessionKey) ; +#endif |