OAuth library for twitter. Original: http://mbed.org/users/soramimi/programs/Twitter/
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sha1.h
00001 /* 00002 * sha1.h 00003 * 00004 * Description: 00005 * This is the header file for code which implements the Secure 00006 * Hashing Algorithm 1 as defined in FIPS PUB 180-1 published 00007 * April 17, 1995. 00008 * 00009 * Many of the variable names in this code, especially the 00010 * single character names, were used because those were the names 00011 * used in the publication. 00012 * 00013 * Please read the file sha1.c for more information. 00014 * 00015 */ 00016 00017 #ifndef _SHA1_H_ 00018 #define _SHA1_H_ 00019 00020 #ifdef __cplusplus 00021 extern "C" { 00022 #endif 00023 00024 //#include <stdint.h> 00025 typedef unsigned long uint32_t; 00026 typedef int int_least16_t; 00027 typedef unsigned char uint8_t; 00028 00029 /* 00030 * If you do not have the ISO standard stdint.h header file, then you 00031 * must typdef the following: 00032 * name meaning 00033 * uint32_t unsigned 32 bit integer 00034 * uint8_t unsigned 8 bit integer (i.e., unsigned char) 00035 * int_least16_t integer of >= 16 bits 00036 * 00037 */ 00038 00039 #ifndef _SHA_enum_ 00040 #define _SHA_enum_ 00041 enum 00042 { 00043 shaSuccess = 0, 00044 shaNull, /* Null pointer parameter */ 00045 shaInputTooLong, /* input data too long */ 00046 shaStateError /* called Input after Result */ 00047 }; 00048 #endif 00049 #define SHA1HashSize 20 00050 00051 /* 00052 * This structure will hold context information for the SHA-1 00053 * hashing operation 00054 */ 00055 typedef struct SHA1Context 00056 { 00057 uint32_t Intermediate_Hash[SHA1HashSize/4]; /* Message Digest */ 00058 00059 uint32_t Length_Low; /* Message length in bits */ 00060 uint32_t Length_High; /* Message length in bits */ 00061 00062 /* Index into message block array */ 00063 int_least16_t Message_Block_Index; 00064 uint8_t Message_Block[64]; /* 512-bit message blocks */ 00065 00066 int Computed; /* Is the digest computed? */ 00067 int Corrupted; /* Is the message digest corrupted? */ 00068 } SHA1Context; 00069 00070 /* 00071 * Function Prototypes 00072 */ 00073 00074 int SHA1Reset( SHA1Context *); 00075 int SHA1Input( SHA1Context *, 00076 const uint8_t *, 00077 unsigned int); 00078 int SHA1Result( SHA1Context *, 00079 uint8_t Message_Digest[SHA1HashSize]); 00080 00081 #ifdef __cplusplus 00082 } 00083 #endif 00084 00085 #endif
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