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fix(util): fix sha384/512 data calculation overflow

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Dong Heng
2019-12-23 16:57:05 +08:00
parent d701e4f858
commit 0f7eacd772
1 changed files with 4 additions and 3 deletions
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7
components/util/src/sha512.c
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@ -256,9 +256,10 @@ int esp_sha384_finish(esp_sha384_t *ctx, void *dest)
ctx->buffer[used++] = 0x80;
memset(ctx->buffer + used, 0, 112 - used);
if (used > 112) {
if (used <= 112)
memset(ctx->buffer + used, 0, 112 - used);
else {
memset(ctx->buffer + used, 0, 128 - used);
esp_sha512_transform(ctx, ctx->buffer);
memset(ctx->buffer, 0, 112);
}