Cross Reference: /external/syslinux/gpxe/src/crypto/axtls/sha1.c

Lines Matching refs:ctx
34 static void SHA1PadMessage(SHA1_CTX *ctx);
35 static void SHA1ProcessMessageBlock(SHA1_CTX *ctx);
40 void SHA1Init(SHA1_CTX *ctx)
42     ctx->Length_Low             = 0;
43     ctx->Length_High            = 0;
44     ctx->Message_Block_Index    = 0;
45     ctx->Intermediate_Hash[0]   = 0x67452301;
46     ctx->Intermediate_Hash[1]   = 0xEFCDAB89;
47     ctx->Intermediate_Hash[2]   = 0x98BADCFE;
48     ctx->Intermediate_Hash[3]   = 0x10325476;
49     ctx->Intermediate_Hash[4]   = 0xC3D2E1F0;
55 void SHA1Update(SHA1_CTX *ctx, const uint8_t *msg, int len)
59         ctx->Message_Block[ctx->Message_Block_Index++] = (*msg & 0xFF);
61         ctx->Length_Low += 8;
62         if (ctx->Length_Low == 0)
64             ctx->Length_High++;
67         if (ctx->Message_Block_Index == 64)
69             SHA1ProcessMessageBlock(ctx);
79 void SHA1Final(SHA1_CTX *ctx, uint8_t *digest)
83     SHA1PadMessage(ctx);
84     memset(ctx->Message_Block, 0, 64);
85     ctx->Length_Low = 0;    /* and clear length */
86     ctx->Length_High = 0;
90         digest[i] = ctx->Intermediate_Hash[i>>2] >> 8 * ( 3 - ( i & 0x03 ) );
97 static void SHA1ProcessMessageBlock(SHA1_CTX *ctx)
115         W[t] = ctx->Message_Block[t * 4] << 24;
116         W[t] |= ctx->Message_Block[t * 4 + 1] << 16;
117         W[t] |= ctx->Message_Block[t * 4 + 2] << 8;
118         W[t] |= ctx->Message_Block[t * 4 + 3];
126     A = ctx->Intermediate_Hash[0];
127     B = ctx->Intermediate_Hash[1];
128     C = ctx->Intermediate_Hash[2];
129     D = ctx->Intermediate_Hash[3];
130     E = ctx->Intermediate_Hash[4];
175     ctx->Intermediate_Hash[0] += A;
176     ctx->Intermediate_Hash[1] += B;
177     ctx->Intermediate_Hash[2] += C;
178     ctx->Intermediate_Hash[3] += D;
179     ctx->Intermediate_Hash[4] += E;
180     ctx->Message_Block_Index = 0;
193  * @param ctx [in, out] The SHA1 context
195 static void SHA1PadMessage(SHA1_CTX *ctx)
203     if (ctx->Message_Block_Index > 55)
205         ctx->Message_Block[ctx->Message_Block_Index++] = 0x80;
206         while(ctx->Message_Block_Index < 64)
208             ctx->Message_Block[ctx->Message_Block_Index++] = 0;
211         SHA1ProcessMessageBlock(ctx);
213         while (ctx->Message_Block_Index < 56)
215             ctx->Message_Block[ctx->Message_Block_Index++] = 0;
220         ctx->Message_Block[ctx->Message_Block_Index++] = 0x80;
221         while(ctx->Message_Block_Index < 56)
224             ctx->Message_Block[ctx->Message_Block_Index++] = 0;
231     ctx->Message_Block[56] = ctx->Length_High >> 24;
232     ctx->Message_Block[57] = ctx->Length_High >> 16;
233     ctx->Message_Block[58] = ctx->Length_High >> 8;
234     ctx->Message_Block[59] = ctx->Length_High;
235     ctx->Message_Block[60] = ctx->Length_Low >> 24;
236     ctx->Message_Block[61] = ctx->Length_Low >> 16;
237     ctx->Message_Block[62] = ctx->Length_Low >> 8;
238     ctx->Message_Block[63] = ctx->Length_Low;
239     SHA1ProcessMessageBlock(ctx);