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Diffstat (limited to 'trunk/include/asterisk/sha1.h')
-rw-r--r-- | trunk/include/asterisk/sha1.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/trunk/include/asterisk/sha1.h b/trunk/include/asterisk/sha1.h new file mode 100644 index 000000000..d530c3206 --- /dev/null +++ b/trunk/include/asterisk/sha1.h @@ -0,0 +1,73 @@ +/* + * sha1.h + * + * Description: + * This is the header file for code which implements the Secure + * Hashing Algorithm 1 as defined in FIPS PUB 180-1 published + * April 17, 1995. + * + * Many of the variable names in this code, especially the + * single character names, were used because those were the names + * used in the publication. + * + * Please read the file sha1.c for more information. + * + */ + + +#ifndef _SHA1_H_ +#define _SHA1_H_ + +/* + * We assume that the standard asterisk headers have been included before this one. + * If you do not have the ISO standard stdint.h header file, then you + * must typdef the following: + * name meaning + * uint32_t unsigned 32 bit integer + * uint8_t unsigned 8 bit integer (i.e., unsigned char) + * + */ + +#ifndef _SHA_enum_ +#define _SHA_enum_ +enum +{ + shaSuccess = 0, + shaNull, /* Null pointer parameter */ + shaInputTooLong, /* input data too long */ + shaStateError /* called Input after Result */ +}; +#endif +#define SHA1HashSize 20 + +/*! + * \brief This structure will hold context information for the SHA-1 hashing operation +*/ +typedef struct SHA1Context +{ + uint32_t Intermediate_Hash[SHA1HashSize/4]; /*! Message Digest */ + + uint32_t Length_Low; /*!< Message length in bits */ + uint32_t Length_High; /*!< Message length in bits */ + + /* Index into message block array */ + uint32_t Message_Block_Index; /*!< 8 bits actually suffice */ + uint8_t Message_Block[64]; /*!< 512-bit message blocks */ + + int Computed; /*!< Is the digest computed? */ + int Corrupted; /*!< Is the message digest corrupted? */ +} SHA1Context; + +/* + * Function Prototypes + */ + + +int SHA1Reset( SHA1Context *); +int SHA1Input( SHA1Context *, + const uint8_t *, + unsigned int); +int SHA1Result( SHA1Context *, + uint8_t Message_Digest[SHA1HashSize]); + +#endif |