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CR50: remove incorrect output length check in RSA decrypt

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The required output length is not known until padding
verification completes (this check is already done
in the appropriate padding check functions).

BRANCH=none
BUG=chrome-os-partner:43025,chrome-os-partner:47524
TEST=tests under test/tpm2/ pass.

Change-Id: I452244d052b7f334a6907bd653645671033a0890
Signed-off-by: nagendra modadugu <ngm@google.com>
Reviewed-on: https://chromium-review.googlesource.com/327074
Commit-Ready: Nagendra Modadugu <ngm@google.com>
Tested-by: Nagendra Modadugu <ngm@google.com>
Reviewed-by: Marius Schilder <mschilder@chromium.org>
This commit is contained in:
nagendra modadugu
2016-02-09 15:10:13 -08:00
committed by chrome-bot
parent e7b5e7b050
commit 388a7fa8cf
1 changed files with 1 additions and 1 deletions
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2
chip/g/dcrypto/rsa.c
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@@ -380,7 +380,7 @@ int DCRYPTO_rsa_decrypt(struct RSA *rsa, uint8_t *out, uint32_t *out_len,
struct BIGNUM padded;
int ret = 1;
if (!check_modulus_params(&rsa->N, out_len))
if (!check_modulus_params(&rsa->N, NULL))
return 0;
if (in_len != bn_size(&rsa->N))
return 0; /* Invalid input length. */