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Diffstat (limited to 'doc/crypto/d2i_ECPKParameters.pod')
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diff --git a/doc/crypto/d2i_ECPKParameters.pod b/doc/crypto/d2i_ECPKParameters.pod deleted file mode 100644 index 704b4ab35286..000000000000 --- a/doc/crypto/d2i_ECPKParameters.pod +++ /dev/null @@ -1,84 +0,0 @@ -=pod - -=head1 NAME - -d2i_ECPKParameters, i2d_ECPKParameters, d2i_ECPKParameters_bio, i2d_ECPKParameters_bio, d2i_ECPKParameters_fp, i2d_ECPKParameters_fp, ECPKParameters_print, ECPKParameters_print_fp - Functions for decoding and encoding ASN1 representations of elliptic curve entities - -=head1 SYNOPSIS - - #include <openssl/ec.h> - - EC_GROUP *d2i_ECPKParameters(EC_GROUP **px, const unsigned char **in, long len); - int i2d_ECPKParameters(const EC_GROUP *x, unsigned char **out); - #define d2i_ECPKParameters_bio(bp,x) ASN1_d2i_bio_of(EC_GROUP,NULL,d2i_ECPKParameters,bp,x) - #define i2d_ECPKParameters_bio(bp,x) ASN1_i2d_bio_of_const(EC_GROUP,i2d_ECPKParameters,bp,x) - #define d2i_ECPKParameters_fp(fp,x) (EC_GROUP *)ASN1_d2i_fp(NULL, \ - (char *(*)())d2i_ECPKParameters,(fp),(unsigned char **)(x)) - #define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \ - (unsigned char *)(x)) - int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off); - int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off); - - -=head1 DESCRIPTION - -The ECPKParameters encode and decode routines encode and parse the public parameters for an -B<EC_GROUP> structure, which represents a curve. - -d2i_ECPKParameters() attempts to decode B<len> bytes at B<*in>. If -successful a pointer to the B<EC_GROUP> structure is returned. If an error -occurred then B<NULL> is returned. If B<px> is not B<NULL> then the -returned structure is written to B<*px>. If B<*px> is not B<NULL> -then it is assumed that B<*px> contains a valid B<EC_GROUP> -structure and an attempt is made to reuse it. If the call is -successful B<*in> is incremented to the byte following the -parsed data. - -i2d_ECPKParameters() encodes the structure pointed to by B<x> into DER format. -If B<out> is not B<NULL> is writes the DER encoded data to the buffer -at B<*out>, and increments it to point after the data just written. -If the return value is negative an error occurred, otherwise it -returns the length of the encoded data. - -If B<*out> is B<NULL> memory will be allocated for a buffer and the encoded -data written to it. In this case B<*out> is not incremented and it points to -the start of the data just written. - -d2i_ECPKParameters_bio() is similar to d2i_ECPKParameters() except it attempts -to parse data from BIO B<bp>. - -d2i_ECPKParameters_fp() is similar to d2i_ECPKParameters() except it attempts -to parse data from FILE pointer B<fp>. - -i2d_ECPKParameters_bio() is similar to i2d_ECPKParameters() except it writes -the encoding of the structure B<x> to BIO B<bp> and it -returns 1 for success and 0 for failure. - -i2d_ECPKParameters_fp() is similar to i2d_ECPKParameters() except it writes -the encoding of the structure B<x> to BIO B<bp> and it -returns 1 for success and 0 for failure. - -These functions are very similar to the X509 functions described in L<d2i_X509(3)|d2i_X509(3)>, -where further notes and examples are available. - -The ECPKParameters_print and ECPKParameters_print_fp functions print a human-readable output -of the public parameters of the EC_GROUP to B<bp> or B<fp>. The output lines are indented by B<off> spaces. - -=head1 RETURN VALUES - -d2i_ECPKParameters(), d2i_ECPKParameters_bio() and d2i_ECPKParameters_fp() return a valid B<EC_GROUP> structure -or B<NULL> if an error occurs. - -i2d_ECPKParameters() returns the number of bytes successfully encoded or a negative -value if an error occurs. - -i2d_ECPKParameters_bio(), i2d_ECPKParameters_fp(), ECPKParameters_print and ECPKParameters_print_fp -return 1 for success and 0 if an error occurs. - -=head1 SEE ALSO - -L<crypto(3)|crypto(3)>, L<ec(3)|ec(3)>, L<EC_GROUP_new(3)|EC_GROUP_new(3)>, L<EC_GROUP_copy(3)|EC_GROUP_copy(3)>, -L<EC_POINT_new(3)|EC_POINT_new(3)>, L<EC_POINT_add(3)|EC_POINT_add(3)>, L<EC_KEY_new(3)|EC_KEY_new(3)>, -L<EC_GFp_simple_method(3)|EC_GFp_simple_method(3)>, L<d2i_X509(3)|d2i_X509(3)> - -=cut |