void RC2_set_key(RC2_KEY *key, int len, unsigned char *data,int bits);
void RC2_ecb_encrypt(unsigned char *in,unsigned char *out,RC2_KEY *key,
int enc);
-void RC2_encrypt(unsigned long *data,RC2_KEY *key,int enc);
+void RC2_encrypt(unsigned long *data,RC2_KEY *key);
+void RC2_decrypt(unsigned long *data,RC2_KEY *key);
void RC2_cbc_encrypt(unsigned char *in, unsigned char *out, long length,
RC2_KEY *ks, unsigned char *iv, int enc);
void RC2_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
void RC2_set_key();
void RC2_ecb_encrypt();
void RC2_encrypt();
+void RC2_decrypt();
void RC2_cbc_encrypt();
void RC2_cfb64_encrypt();
void RC2_ofb64_encrypt();