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upstream: add support for reading ED25519 private keys in PEM PKCS8
format; ok markus@ tb@ OpenBSD-Commit-ID: 01b85c91757e6b057e9b23b8a23f96415c3c7174
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parent
fc77c8e352
commit
76e91e7238
24
configure.ac
24
configure.ac
@ -3140,6 +3140,30 @@ if test "x$openssl" = "xyes" ; then
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ecdsa-sha2-nistp521 \
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ecdsa-sha2-nistp521-cert-v01@openssh.com"
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fi
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# Check libcrypto ED25519 support
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AC_CHECK_FUNCS([EVP_PKEY_get_raw_public_key])
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AC_CHECK_FUNCS([EVP_PKEY_get_raw_private_key])
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AC_MSG_CHECKING([whether OpenSSL has ED25519 support])
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM([[
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#include <string.h>
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#include <openssl/evp.h>
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]], [[
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unsigned char buf[64];
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memset(buf, 0, sizeof(buf));
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exit(EVP_PKEY_new_raw_private_key(EVP_PKEY_ED25519,
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buf, sizeof(buf)) == NULL);
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]])],
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[
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AC_MSG_RESULT([no])
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],
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[
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AC_MSG_RESULT([yes])
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AC_DEFINE([OPENSSL_HAS_ED25519], [1],
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[libcrypto has ed25519 support])
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]
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)
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fi
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# PKCS11/U2F depend on OpenSSL and dlopen().
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39
sshkey.c
39
sshkey.c
@ -1,4 +1,4 @@
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/* $OpenBSD: sshkey.c,v 1.138 2023/08/21 04:36:46 djm Exp $ */
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/* $OpenBSD: sshkey.c,v 1.139 2023/10/11 22:41:05 djm Exp $ */
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/*
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* Copyright (c) 2000, 2001 Markus Friedl. All rights reserved.
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* Copyright (c) 2008 Alexander von Gernler. All rights reserved.
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@ -3422,6 +3422,7 @@ sshkey_parse_private_pem_fileblob(struct sshbuf *blob, int type,
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struct sshkey *prv = NULL;
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BIO *bio = NULL;
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int r;
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size_t len;
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if (keyp != NULL)
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*keyp = NULL;
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@ -3500,6 +3501,41 @@ sshkey_parse_private_pem_fileblob(struct sshbuf *blob, int type,
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sshkey_dump_ec_key(prv->ecdsa);
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# endif
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#endif /* OPENSSL_HAS_ECC */
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#ifdef OPENSSL_HAS_ED25519
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} else if (EVP_PKEY_base_id(pk) == EVP_PKEY_ED25519 &&
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(type == KEY_UNSPEC || type == KEY_ED25519)) {
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if ((prv = sshkey_new(KEY_UNSPEC)) == NULL ||
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(prv->ed25519_sk = calloc(1, ED25519_SK_SZ)) == NULL ||
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(prv->ed25519_pk = calloc(1, ED25519_PK_SZ)) == NULL) {
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r = SSH_ERR_ALLOC_FAIL;
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goto out;
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}
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prv->type = KEY_ED25519;
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len = ED25519_PK_SZ;
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if (!EVP_PKEY_get_raw_public_key(pk, prv->ed25519_pk, &len)) {
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r = SSH_ERR_LIBCRYPTO_ERROR;
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goto out;
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}
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if (len != ED25519_PK_SZ) {
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r = SSH_ERR_INVALID_FORMAT;
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goto out;
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}
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len = ED25519_SK_SZ - ED25519_PK_SZ;
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if (!EVP_PKEY_get_raw_private_key(pk, prv->ed25519_sk, &len)) {
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r = SSH_ERR_LIBCRYPTO_ERROR;
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goto out;
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}
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if (len != ED25519_SK_SZ - ED25519_PK_SZ) {
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r = SSH_ERR_INVALID_FORMAT;
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goto out;
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}
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/* Append the public key to our private key */
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memcpy(prv->ed25519_sk + (ED25519_SK_SZ - ED25519_PK_SZ),
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prv->ed25519_pk, ED25519_PK_SZ);
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# ifdef DEBUG_PK
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sshbuf_dump_data(prv->ed25519_sk, ED25519_SK_SZ, stderr);
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# endif
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#endif /* OPENSSL_HAS_ED25519 */
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} else {
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r = SSH_ERR_INVALID_FORMAT;
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goto out;
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@ -3529,7 +3565,6 @@ sshkey_parse_private_fileblob_type(struct sshbuf *blob, int type,
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*commentp = NULL;
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switch (type) {
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case KEY_ED25519:
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case KEY_XMSS:
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/* No fallback for new-format-only keys */
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return sshkey_parse_private2(blob, type, passphrase,
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