1ca10fd167
* Add SCRAM_DIGEST_SIZE macro for maximum possible digest size. It will avoid new buffer overflow errors when new digests are added. * Fix buffer overflow in sasl_scram(). Buffers were allocated for SHA1 digest size. * Fix bug with handler re-registration when a SASL SCRAM mechanism fails.
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/* scram.h
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* strophe XMPP client library -- SCRAM helper functions
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*
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* Copyright (C) 2013 Dmitry Podgorny <pasis.ua@gmail.com>
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*
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* This software is provided AS-IS with no warranty, either express
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* or implied.
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*
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* This program is dual licensed under the MIT and GPLv3 licenses.
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*/
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/** @file
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* SCRAM helper functions.
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*/
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#ifndef __LIBSTROPHE_SCRAM_H__
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#define __LIBSTROPHE_SCRAM_H__
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/* make sure the stdint.h types are available */
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#include "ostypes.h"
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/* Maximum possible digest size. Used for buffers allocation. */
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#include "sha512.h"
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#define SCRAM_DIGEST_SIZE SHA512_DIGEST_SIZE
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struct hash_alg {
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const char *scram_name;
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int mask;
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size_t digest_size;
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void (*hash)(const uint8_t *, size_t, uint8_t *);
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void (*init)(void *);
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void (*update)(void *, const uint8_t *, size_t);
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void (*final)(void *, uint8_t *);
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};
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extern const struct hash_alg scram_sha1;
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extern const struct hash_alg scram_sha256;
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extern const struct hash_alg scram_sha512;
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void SCRAM_ClientKey(const struct hash_alg *alg,
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const uint8_t *password,
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size_t len,
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const uint8_t *salt,
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size_t salt_len,
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uint32_t i,
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uint8_t *key);
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void SCRAM_ClientSignature(const struct hash_alg *alg,
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const uint8_t *ClientKey,
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const uint8_t *AuthMessage,
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size_t len,
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uint8_t *sign);
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void SCRAM_ClientProof(const struct hash_alg *alg,
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const uint8_t *ClientKey,
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const uint8_t *ClientSignature,
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uint8_t *proof);
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#endif /* __LIBSTROPHE_SCRAM_H__ */
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