99 lines
2.8 KiB
C++
99 lines
2.8 KiB
C++
MODULE = CryptX PACKAGE = Crypt::Mode::CFB
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### BEWARE - GENERATED FILE, DO NOT EDIT MANUALLY!
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Crypt::Mode::CFB
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_new(char * cipher_name, int rounds=0)
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CODE:
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{
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Newz(0, RETVAL, 1, struct cfb_struct);
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if (!RETVAL) croak("FATAL: Newz failed");
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RETVAL->direction = 0;
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RETVAL->cipher_rounds = rounds;
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RETVAL->cipher_id = find_cipher(cipher_name);
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if(RETVAL->cipher_id==-1) croak("FATAL: find_cipfer failed for '%s'", cipher_name);
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}
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OUTPUT:
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RETVAL
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void
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DESTROY(Crypt::Mode::CFB self)
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CODE:
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Safefree(self);
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int
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_get_dir(Crypt::Mode::CFB self)
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CODE:
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RETVAL = self->direction;
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OUTPUT:
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RETVAL
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void
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_start(Crypt::Mode::CFB self, int dir, SV * key, SV * iv)
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CODE:
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{
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STRLEN k_len=0;
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unsigned char *k=NULL;
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STRLEN i_len=0;
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unsigned char *i=NULL;
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int rv;
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if (!SvPOK(key)) croak("FATAL: key must be string/buffer scalar");
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k = (unsigned char *) SvPVbyte(key, k_len);
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if (!SvPOK(iv)) croak("FATAL: iv must be string/buffer scalar");
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i = (unsigned char *) SvPVbyte(iv, i_len);
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if (i_len != (STRLEN)cipher_descriptor[self->cipher_id].block_length) {
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croak ("FATAL: sizeof(iv) should be equal to blocksize (%d)", cipher_descriptor[self->cipher_id].block_length);
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}
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rv = cfb_start(self->cipher_id, i, k, (int)k_len, self->cipher_rounds, &self->state);
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if (rv != CRYPT_OK) {
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croak("FATAL: cfb_start failed: %s", error_to_string(rv));
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}
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self->direction = dir;
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}
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SV *
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_crypt(Crypt::Mode::CFB self, SV * data)
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CODE:
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{
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int rv;
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STRLEN in_data_len;
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unsigned char *in_data, *out_data;
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in_data = (unsigned char *)SvPVbyte(data, in_data_len);
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if (in_data_len==0) {
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RETVAL = newSVpvn("", 0);
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}
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else {
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RETVAL = NEWSV(0, in_data_len);
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SvPOK_only(RETVAL);
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SvCUR_set(RETVAL, in_data_len);
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out_data = (unsigned char *)SvPV_nolen(RETVAL);
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if (self->direction == 1) {
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rv = cfb_encrypt(in_data, out_data, (unsigned long)in_data_len, &self->state);
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if (rv != CRYPT_OK) croak("FATAL: cfb_encrypt failed: %s", error_to_string(rv));
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}
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else if (self->direction == -1) {
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rv = cfb_decrypt(in_data, out_data, (unsigned long)in_data_len, &self->state);
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if (rv != CRYPT_OK) croak("FATAL: cfb_decrypt failed: %s", error_to_string(rv));
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}
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else {
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croak("FATAL: cfb_crypt failed: call start_encrypt or start_decrypt first");
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}
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}
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}
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OUTPUT:
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RETVAL
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SV *
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_finish(Crypt::Mode::CFB self)
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CODE:
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self->direction = 0;
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RETVAL = newSVpvn("", 0);
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OUTPUT:
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RETVAL
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