63 lines
2.1 KiB
Diff
63 lines
2.1 KiB
Diff
From baa3ecd821018d699b039259ac80b999d28f88ae Mon Sep 17 00:00:00 2001
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From: Dan Streetman <ddstreet@ieee.org>
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Date: Tue, 18 Jul 2023 22:48:34 -0400
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Subject: [PATCH] openssl: add openssl_pkey_from_pem()
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Add function to create EVP_PKEY from PEM buffer.
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(cherry picked from commit 4af788c70c985b6b87435a90594e2a301929fb5b)
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Related: RHEL-16182
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---
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src/shared/openssl-util.c | 19 +++++++++++++++++++
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src/shared/openssl-util.h | 2 ++
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2 files changed, 21 insertions(+)
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diff --git a/src/shared/openssl-util.c b/src/shared/openssl-util.c
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index c7fcbd9ea4..9021d91077 100644
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--- a/src/shared/openssl-util.c
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+++ b/src/shared/openssl-util.c
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@@ -1,10 +1,29 @@
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
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+#include "fd-util.h"
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#include "openssl-util.h"
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#include "alloc-util.h"
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#include "hexdecoct.h"
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#if HAVE_OPENSSL
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+int openssl_pkey_from_pem(const void *pem, size_t pem_size, EVP_PKEY **ret) {
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+ assert(pem);
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+ assert(ret);
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+
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+ _cleanup_fclose_ FILE *f = NULL;
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+ f = fmemopen((void*) pem, pem_size, "r");
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+ if (!f)
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+ return log_oom_debug();
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+
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+ _cleanup_(EVP_PKEY_freep) EVP_PKEY *pkey = PEM_read_PUBKEY(f, NULL, NULL, NULL);
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+ if (!pkey)
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+ return log_debug_errno(SYNTHETIC_ERRNO(EIO), "Failed to parse PEM.");
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+
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+ *ret = TAKE_PTR(pkey);
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+
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+ return 0;
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+}
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+
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int openssl_hash(const EVP_MD *alg,
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const void *msg,
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size_t msg_len,
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diff --git a/src/shared/openssl-util.h b/src/shared/openssl-util.h
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index 4fa0a95966..231bcc2bf8 100644
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--- a/src/shared/openssl-util.h
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+++ b/src/shared/openssl-util.h
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@@ -43,6 +43,8 @@ static inline void sk_X509_free_allp(STACK_OF(X509) **sk) {
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sk_X509_pop_free(*sk, X509_free);
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}
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+int openssl_pkey_from_pem(const void *pem, size_t pem_size, EVP_PKEY **ret);
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+
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int openssl_hash(const EVP_MD *alg, const void *msg, size_t msg_len, uint8_t *ret_hash, size_t *ret_hash_len);
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int rsa_encrypt_bytes(EVP_PKEY *pkey, const void *decrypted_key, size_t decrypted_key_size, void **ret_encrypt_key, size_t *ret_encrypt_key_size);
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