C++ (Cpp) mbedtls_sha512_sw_free Beispiele

Beispiel #1

Datei: sha512_alt.c Projekt: TomoYamanaka/mbed

void mbedtls_sha512_free(mbedtls_sha512_context *ctx)
{
    if (ctx == NULL) {
        return;
    }

    if (ctx->active_ctx == &ctx->hw_ctx) {
        mbedtls_sha512_hw_free(&ctx->hw_ctx);
        crypto_sha_release();
    } else if (ctx->active_ctx == &ctx->sw_ctx) {
        mbedtls_sha512_sw_free(&ctx->sw_ctx);
    }
    ctx->active_ctx = NULL;
}

Beispiel #2

Datei: sha_alt_hw.c Projekt: Archcady/mbed-os

void mbedtls_sha512_hw_finish(crypto_sha_context *ctx, unsigned char output[64])
{
    // H/W SHA cannot handle zero data well. Fall back to S/W SHA.
    if (ctx->total) {
        crypto_sha_update_nobuf(ctx, ctx->buffer, ctx->buffer_left, 1);
        ctx->buffer_left = 0;
        crypto_sha_getinternstate(output, ctx->is224_384 ? 48 : 64);
    
        CRPT->HMAC_CTL |= CRPT_HMAC_CTL_STOP_Msk;
    }
    else {
        mbedtls_sha512_sw_context ctx_sw;
    
        mbedtls_sha512_sw_init(&ctx_sw);
        mbedtls_sha512_sw_starts(&ctx_sw, ctx->is224_384);
        mbedtls_sha512_sw_finish(&ctx_sw, output);
        mbedtls_sha512_sw_free(&ctx_sw);
    }
}