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ED25519 Key Support #39 (#248)

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OpenSSH Key and ED25519 support #39
Added _libssh2_explicit_zero() to explicitly zero sensitive data in memory #120

* ED25519 Key file support - Requires OpenSSL 1.1.1 or later
* OpenSSH Key format reading support - Supports RSA/DSA/ECDSA/ED25519 types
* New string buffer reading functions - These add build-in bounds checking and convenance methods. Used for OpenSSL PEM file reading.
* Added new tests for OpenSSH formatted Keys
This commit is contained in:
Will Cosgrove
2018-08-02 14:00:25 -07:00
committed by GitHub
parent 62b825c8af
commit 0309229259
35 changed files with 4368 additions and 285 deletions
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29
src/openssl.h
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@@ -76,6 +76,11 @@
# define LIBSSH2_ECDSA 1
#endif
#if OPENSSL_VERSION_NUMBER >= 0x10101000L && \
!defined(LIBRESSL_VERSION_NUMBER)
# define LIBSSH2_ED25519 1
#endif
#ifdef OPENSSL_NO_MD5
# define LIBSSH2_MD5 0
#else
@@ -306,7 +311,29 @@ typedef enum {
libssh2_curve_type;
#else
#define _libssh2_ec_key void
#endif
#endif /* LIBSSH2_ECDSA */
#if LIBSSH2_ED25519
typedef struct {
EVP_PKEY *public_key;
EVP_PKEY *private_key;
} libssh2_curve25519_keys;
#define libssh2_ed25519_ctx libssh2_curve25519_keys
#define libssh2_x25519_ctx libssh2_curve25519_keys
#define _libssh2_ed25519_free(ctx) do { \
if(ctx) { \
if(ctx->public_key) EVP_PKEY_free(ctx->public_key); \
if(ctx->private_key) EVP_PKEY_free(ctx->private_key); \
free(ctx); \
} \
} while(0)
#define _libssh2_x25519_free(ctx) _libssh2_ed25519_free(ctx)
#endif /* ED25519 */
#define _libssh2_cipher_type(name) const EVP_CIPHER *(*name)(void)
#ifdef HAVE_OPAQUE_STRUCTS