auth/hmac: 0-pad the hashed key in longer-than-blocksize case
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@ -42,12 +42,13 @@ hmac_common_init(void *arg, const uint8_t *key, size_t keylen)
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!lc_hash_update(ctx->hctx, key, keylen) ||
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!lc_hash_final(ctx->hctx, ctx->key, &olen))
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return 0;
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} else {
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keylen = olen;
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} else
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for (i = 0; i < keylen; i++)
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ctx->key[i] = key[i];
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for (; i < ctx->blocksz; i++)
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ctx->key[i] = 0;
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}
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for (i = keylen; i < ctx->blocksz; i++)
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ctx->key[i] = 0;
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for (i = 0; i < ctx->blocksz; i++)
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ikeypad[i] = ctx->key[i] ^ HMAC_IPAD;
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