Import HKDF code from OpenSSL 1.1.1o

This imports verbatim copies as of the OpenSSL_1_1_1o tag of

  crypto/kdf/hkdf.c
  crypto/kdf/hkdf_err.c
  include/openssl/kdf.h
  include/openssl/kdferr.h

from https://www.github.com/openssl/openssl.git into lib/libcrypto/kdf.

We only want the EVP interface to HKDF since some ports need them.  Not
yet linked to the build since it will not compile. Follow-on commits will
add KNF, clean up and make this compile.

Tests of an early draft version by abieber and Caspar Schutijser

ok jsing

1 files changed, 67 insertions, 0 deletions

diff --git a/src/lib/libcrypto/kdf/kdf_err.c b/src/lib/libcrypto/kdf/kdf_err.c
new file mode 100644
index 0000000000..1627c0a394
--- /dev/null
+++ b/src/lib/libcrypto/kdf/kdf_err.c
@@ -0,0 +1,67 @@
+/*
+ * Generated by util/mkerr.pl DO NOT EDIT
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/err.h>
+#include <openssl/kdferr.h>
+
+#ifndef OPENSSL_NO_ERR
+
+static const ERR_STRING_DATA KDF_str_functs[] = {
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_HKDF_CTRL_STR, 0), "pkey_hkdf_ctrl_str"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_HKDF_DERIVE, 0), "pkey_hkdf_derive"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_HKDF_INIT, 0), "pkey_hkdf_init"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_CTRL_STR, 0),
+     "pkey_scrypt_ctrl_str"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_CTRL_UINT64, 0),
+     "pkey_scrypt_ctrl_uint64"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_DERIVE, 0), "pkey_scrypt_derive"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_INIT, 0), "pkey_scrypt_init"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_SCRYPT_SET_MEMBUF, 0),
+     "pkey_scrypt_set_membuf"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_CTRL_STR, 0),
+     "pkey_tls1_prf_ctrl_str"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_DERIVE, 0),
+     "pkey_tls1_prf_derive"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_PKEY_TLS1_PRF_INIT, 0), "pkey_tls1_prf_init"},
+    {ERR_PACK(ERR_LIB_KDF, KDF_F_TLS1_PRF_ALG, 0), "tls1_prf_alg"},
+    {0, NULL}
+};
+
+static const ERR_STRING_DATA KDF_str_reasons[] = {
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_INVALID_DIGEST), "invalid digest"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_ITERATION_COUNT),
+    "missing iteration count"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_KEY), "missing key"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_MESSAGE_DIGEST),
+    "missing message digest"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_PARAMETER), "missing parameter"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_PASS), "missing pass"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SALT), "missing salt"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SECRET), "missing secret"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_MISSING_SEED), "missing seed"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_UNKNOWN_PARAMETER_TYPE),
+    "unknown parameter type"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_VALUE_ERROR), "value error"},
+    {ERR_PACK(ERR_LIB_KDF, 0, KDF_R_VALUE_MISSING), "value missing"},
+    {0, NULL}
+};
+
+#endif
+
+int ERR_load_KDF_strings(void)
+{
+#ifndef OPENSSL_NO_ERR
+    if (ERR_func_error_string(KDF_str_functs[0].error) == NULL) {
+        ERR_load_strings_const(KDF_str_functs);
+        ERR_load_strings_const(KDF_str_reasons);
+    }
+#endif
+    return 1;
+}