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Diffstat (limited to 'include/mbedtls/md5.h')
| -rw-r--r-- | include/mbedtls/md5.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/include/mbedtls/md5.h b/include/mbedtls/md5.h new file mode 100644 index 0000000..6bf0754 --- /dev/null +++ b/include/mbedtls/md5.h @@ -0,0 +1,190 @@ +/** + * \file md5.h + * + * \brief MD5 message digest algorithm (hash function) + * + * \warning MD5 is considered a weak message digest and its use constitutes a + * security risk. We recommend considering stronger message + * digests instead. + */ +/* + * Copyright The Mbed TLS Contributors + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later + */ +#ifndef MBEDTLS_MD5_H +#define MBEDTLS_MD5_H +#include "mbedtls/private_access.h" + +#include "mbedtls/build_info.h" + +#include <stddef.h> +#include <stdint.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#if !defined(MBEDTLS_MD5_ALT) +// Regular implementation +// + +/** + * \brief MD5 context structure + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +typedef struct mbedtls_md5_context { + uint32_t MBEDTLS_PRIVATE(total)[2]; /*!< number of bytes processed */ + uint32_t MBEDTLS_PRIVATE(state)[4]; /*!< intermediate digest state */ + unsigned char MBEDTLS_PRIVATE(buffer)[64]; /*!< data block being processed */ +} +mbedtls_md5_context; + +#else /* MBEDTLS_MD5_ALT */ +#include "md5_alt.h" +#endif /* MBEDTLS_MD5_ALT */ + +/** + * \brief Initialize MD5 context + * + * \param ctx MD5 context to be initialized + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +void mbedtls_md5_init(mbedtls_md5_context *ctx); + +/** + * \brief Clear MD5 context + * + * \param ctx MD5 context to be cleared + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +void mbedtls_md5_free(mbedtls_md5_context *ctx); + +/** + * \brief Clone (the state of) an MD5 context + * + * \param dst The destination context + * \param src The context to be cloned + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +void mbedtls_md5_clone(mbedtls_md5_context *dst, + const mbedtls_md5_context *src); + +/** + * \brief MD5 context setup + * + * \param ctx context to be initialized + * + * \return 0 if successful + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +int mbedtls_md5_starts(mbedtls_md5_context *ctx); + +/** + * \brief MD5 process buffer + * + * \param ctx MD5 context + * \param input buffer holding the data + * \param ilen length of the input data + * + * \return 0 if successful + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +int mbedtls_md5_update(mbedtls_md5_context *ctx, + const unsigned char *input, + size_t ilen); + +/** + * \brief MD5 final digest + * + * \param ctx MD5 context + * \param output MD5 checksum result + * + * \return 0 if successful + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +int mbedtls_md5_finish(mbedtls_md5_context *ctx, + unsigned char output[16]); + +/** + * \brief MD5 process data block (internal use only) + * + * \param ctx MD5 context + * \param data buffer holding one block of data + * + * \return 0 if successful + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +int mbedtls_internal_md5_process(mbedtls_md5_context *ctx, + const unsigned char data[64]); + +/** + * \brief Output = MD5( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output MD5 checksum result + * + * \return 0 if successful + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +int mbedtls_md5(const unsigned char *input, + size_t ilen, + unsigned char output[16]); + +#if defined(MBEDTLS_SELF_TEST) + +/** + * \brief Checkup routine + * + * \return 0 if successful, or 1 if the test failed + * + * \warning MD5 is considered a weak message digest and its use + * constitutes a security risk. We recommend considering + * stronger message digests instead. + * + */ +int mbedtls_md5_self_test(int verbose); + +#endif /* MBEDTLS_SELF_TEST */ + +#ifdef __cplusplus +} +#endif + +#endif /* mbedtls_md5.h */ |