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57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
#ifndef EL__UTIL_MD5_H
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#define EL__UTIL_MD5_H
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#define CONFIG_MD5 1
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* GNU TLS doesn't define this */
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#ifndef MD5_DIGEST_LENGTH
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#define MD5_DIGEST_LENGTH 16
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#endif
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#define MD5_HEX_DIGEST_LENGTH (MD5_DIGEST_LENGTH * 2)
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typedef unsigned char md5_digest_bin_T[MD5_DIGEST_LENGTH];
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typedef unsigned char md5_digest_hex_T[MD5_HEX_DIGEST_LENGTH];
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struct md5_context {
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uint32_t buf[4];
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uint32_t bits[2];
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unsigned char in[64];
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};
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/* The interface for digesting several chunks of data. To compute the message
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* digest of a chunk of bytes, declare an md5_context structure, pass it to
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* init_md5(), call update_md5() as needed on buffers full of bytes, and then
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* call done_md5(), which will fill a supplied 16-byte array with the digest. */
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void init_md5(struct md5_context *context);
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void update_md5(struct md5_context *context, const char *data, unsigned long length);
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void done_md5(struct md5_context *context, md5_digest_bin_T digest);
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/** Digest the passed @a data with the given length and stores the MD5
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* digest in the @a digest parameter. */
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unsigned char *
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digest_md5(const char *data, unsigned long length, md5_digest_bin_T digest);
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#ifdef CONFIG_MD5
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/** @name Provide compatibility with the OpenSSL interface:
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* @{ */
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typedef struct md5_context MD5_CTX;
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#define MD5_Init(context) init_md5(context)
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#define MD5_Update(context, data, len) update_md5(context, data, len)
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#define MD5_Final(md5, context) done_md5(context, md5)
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#define MD5(data, len, md5) digest_md5(data, len, md5)
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/** @} */
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#endif /* CONFIG_MD5 */
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#ifdef __cplusplus
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}
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#endif
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#endif
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