27 lines
1.1 KiB
Diff
27 lines
1.1 KiB
Diff
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From 20bafea414bcc08bfcb5b669ecbf9a3438ff7b78 Mon Sep 17 00:00:00 2001
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From: Alex Gaynor <alex.gaynor@gmail.com>
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Date: Thu, 3 Mar 2022 15:44:02 -0500
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Subject: [PATCH 3/5] fixes #6927 -- handle negative return values from openssl
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(#6928)
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---
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src/cryptography/hazmat/backends/openssl/rsa.py | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/cryptography/hazmat/backends/openssl/rsa.py b/src/cryptography/hazmat/backends/openssl/rsa.py
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index 9bef49d24..dd5d4990b 100644
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--- a/src/cryptography/hazmat/backends/openssl/rsa.py
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+++ b/src/cryptography/hazmat/backends/openssl/rsa.py
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@@ -208,7 +208,7 @@ def _rsa_sig_setup(backend, padding, algorithm, key, init_func):
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if algorithm is not None:
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evp_md = backend._evp_md_non_null_from_algorithm(algorithm)
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res = backend._lib.EVP_PKEY_CTX_set_signature_md(pkey_ctx, evp_md)
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- if res == 0:
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+ if res <= 0:
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backend._consume_errors()
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raise UnsupportedAlgorithm(
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"{} is not supported by this backend for RSA signing.".format(
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--
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2.35.1
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