CONTEXT_CONTROL_CRYPTO_ALG_SHA1
ctx->hash_alg = CONTEXT_CONTROL_CRYPTO_ALG_SHA1;
ctx->hash_alg = CONTEXT_CONTROL_CRYPTO_ALG_SHA1;
case CONTEXT_CONTROL_CRYPTO_ALG_SHA1:
ctx->alg = CONTEXT_CONTROL_CRYPTO_ALG_SHA1;
else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA1)
ctx->alg = CONTEXT_CONTROL_CRYPTO_ALG_SHA1;