Cross Reference: /system/core/libmincrypt/sha.c

Lines Matching refs:ctx
51 static void SHA1_Transform(SHA_CTX* ctx) {
56     A = ctx->state[0];
57     B = ctx->state[1];
58     C = ctx->state[2];
59     D = ctx->state[3];
60     E = ctx->state[4];
64         (W[t] = bswap_32(ctx->buf.w[t])) +      \
140     ctx->state[0] += A;
141     ctx->state[1] += B;
142     ctx->state[2] += C;
143     ctx->state[3] += D;
144     ctx->state[4] += E;
147 void SHA_update(SHA_CTX* ctx, const void* data, int len) {
148     int i = ctx->count % sizeof(ctx->buf);
151     ctx->count += len;
153     while (len > sizeof(ctx->buf) - i) {
154         memcpy(&ctx->buf.b[i], p, sizeof(ctx->buf) - i);
155         len -= sizeof(ctx->buf) - i;
156         p += sizeof(ctx->buf) - i;
157         SHA1_Transform(ctx);
162         ctx->buf.b[i++] = *p++;
163         if (i == sizeof(ctx->buf)) {
164             SHA1_Transform(ctx);
171 const uint8_t* SHA_final(SHA_CTX* ctx) {
172     uint64_t cnt = ctx->count * 8;
175     SHA_update(ctx, (uint8_t*)"\x80", 1);
176     while ((ctx->count % sizeof(ctx->buf)) != (sizeof(ctx->buf) - 8)) {
177         SHA_update(ctx, (uint8_t*)"\0", 1);
181         SHA_update(ctx, &tmp, 1);
185         ctx->buf.w[i] = bswap_32(ctx->state[i]);
188     return ctx->buf.b;
195 static void SHA1_transform(SHA_CTX *ctx) {
198     uint8_t *p = ctx->buf;
213     A = ctx->state[0];
214     B = ctx->state[1];
215     C = ctx->state[2];
216     D = ctx->state[3];
217     E = ctx->state[4];
238     ctx->state[0] += A;
239     ctx->state[1] += B;
240     ctx->state[2] += C;
241     ctx->state[3] += D;
242     ctx->state[4] += E;
245 void SHA_update(SHA_CTX *ctx, const void *data, int len) {
246     int i = ctx->count % sizeof(ctx->buf);
249     ctx->count += len;
252         ctx->buf[i++] = *p++;
253         if (i == sizeof(ctx->buf)) {
254             SHA1_transform(ctx);
259 const uint8_t *SHA_final(SHA_CTX *ctx) {
260     uint8_t *p = ctx->buf;
261     uint64_t cnt = ctx->count * 8;
264     SHA_update(ctx, (uint8_t*)"\x80", 1);
265     while ((ctx->count % sizeof(ctx->buf)) != (sizeof(ctx->buf) - 8)) {
266         SHA_update(ctx, (uint8_t*)"\0", 1);
270         SHA_update(ctx, &tmp, 1);
274         uint32_t tmp = ctx->state[i];
281     return ctx->buf;
286 void SHA_init(SHA_CTX* ctx) {
287     ctx->state[0] = 0x67452301;
288     ctx->state[1] = 0xEFCDAB89;
289     ctx->state[2] = 0x98BADCFE;
290     ctx->state[3] = 0x10325476;
291     ctx->state[4] = 0xC3D2E1F0;
292     ctx->count = 0;
299     SHA_CTX ctx;
300     SHA_init(&ctx);
301     SHA_update(&ctx, data, len);
302     p = SHA_final(&ctx);