crypto: aes helper functions relocated to dedicated files

src/modules/crypto/crypto_aes.c

@@ -0,0 +1,21 @@
+/**
+ * Copyright (C) 2016-2020 Daniel-Constantin Mierla (asipto.com)
+ *
+ * This file is part of Kamailio, a free SIP server.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version
+ *
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+

src/modules/crypto/crypto_aes.h

@@ -0,0 +1,35 @@
+/**
+ * Copyright (C) 2016-2020 Daniel-Constantin Mierla (asipto.com)
+ *
+ * This file is part of Kamailio, a free SIP server.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version
+ *
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef _CRYPTO_AES_H_
+#define _CRYPTO_AES_H_
+
+#include <openssl/evp.h>
+
+int crypto_aes_init(unsigned char *key_data, int key_data_len,
+		unsigned char *salt, EVP_CIPHER_CTX *e_ctx, EVP_CIPHER_CTX *d_ctx);
+
+unsigned char *crypto_aes_encrypt(EVP_CIPHER_CTX *e, unsigned char *plaintext,
+		int *len);
+
+unsigned char *crypto_aes_decrypt(EVP_CIPHER_CTX *e, unsigned char *ciphertext,
+		int *len);
+#endif