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Diffstat (limited to 'secure/lib/libcrypto/man/EC_POINT_add.3')
| -rw-r--r-- | secure/lib/libcrypto/man/EC_POINT_add.3 | 203 |
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diff --git a/secure/lib/libcrypto/man/EC_POINT_add.3 b/secure/lib/libcrypto/man/EC_POINT_add.3 new file mode 100644 index 0000000..4947575 --- /dev/null +++ b/secure/lib/libcrypto/man/EC_POINT_add.3 @@ -0,0 +1,203 @@ +.\" Automatically generated by Pod::Man 2.28 (Pod::Simple 3.28) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. \*(C+ will +.\" give a nicer C++. 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Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH "NAME" +EC_POINT_add, EC_POINT_dbl, EC_POINT_invert, EC_POINT_is_at_infinity, EC_POINT_is_on_curve, EC_POINT_cmp, EC_POINT_make_affine, EC_POINTs_make_affine, EC_POINTs_mul, EC_POINT_mul, EC_GROUP_precompute_mult, EC_GROUP_have_precompute_mult \- Functions for performing mathematical operations and tests on EC_POINT objects. +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +.Vb 2 +\& #include <openssl/ec.h> +\& #include <openssl/bn.h> +\& +\& int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx); +\& int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, BN_CTX *ctx); +\& int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx); +\& int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p); +\& int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point, BN_CTX *ctx); +\& int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx); +\& int EC_POINT_make_affine(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx); +\& int EC_POINTs_make_affine(const EC_GROUP *group, size_t num, EC_POINT *points[], BN_CTX *ctx); +\& int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, size_t num, const EC_POINT *p[], const BIGNUM *m[], BN_CTX *ctx); +\& int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx); +\& int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx); +\& int EC_GROUP_have_precompute_mult(const EC_GROUP *group); +.Ve +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +EC_POINT_add adds the two points \fBa\fR and \fBb\fR and places the result in \fBr\fR. Similarly EC_POINT_dbl doubles the point \fBa\fR and places the +result in \fBr\fR. In both cases it is valid for \fBr\fR to be one of \fBa\fR or \fBb\fR. +.PP +EC_POINT_invert calculates the inverse of the supplied point \fBa\fR. The result is placed back in \fBa\fR. +.PP +The function EC_POINT_is_at_infinity tests whether the supplied point is at infinity or not. +.PP +EC_POINT_is_on_curve tests whether the supplied point is on the curve or not. +.PP +EC_POINT_cmp compares the two supplied points and tests whether or not they are equal. +.PP +The functions EC_POINT_make_affine and EC_POINTs_make_affine force the internal representation of the \s-1EC_POINT\s0(s) into the affine +co-ordinate system. In the case of EC_POINTs_make_affine the value \fBnum\fR provides the number of points in the array \fBpoints\fR to be +forced. +.PP +EC_POINT_mul calculates the value generator * \fBn\fR + \fBq\fR * \fBm\fR and stores the result in \fBr\fR. The value \fBn\fR may be \s-1NULL\s0 in which case the result is just \fBq\fR * \fBm\fR. +.PP +EC_POINTs_mul calculates the value generator * \fBn\fR + \fBq[0]\fR * \fBm[0]\fR + ... + \fBq[num\-1]\fR * \fBm[num\-1]\fR. As for EC_POINT_mul the value +\&\fBn\fR may be \s-1NULL.\s0 +.PP +The function EC_GROUP_precompute_mult stores multiples of the generator for faster point multiplication, whilst +EC_GROUP_have_precompute_mult tests whether precomputation has already been done. See \fIEC_GROUP_copy\fR\|(3) for information +about the generator. +.SH "RETURN VALUES" +.IX Header "RETURN VALUES" +The following functions return 1 on success or 0 on error: EC_POINT_add, EC_POINT_dbl, EC_POINT_invert, EC_POINT_make_affine, +EC_POINTs_make_affine, EC_POINTs_make_affine, EC_POINT_mul, EC_POINTs_mul and EC_GROUP_precompute_mult. +.PP +EC_POINT_is_at_infinity returns 1 if the point is at infinity, or 0 otherwise. +.PP +EC_POINT_is_on_curve returns 1 if the point is on the curve, 0 if not, or \-1 on error. +.PP +EC_POINT_cmp returns 1 if the points are not equal, 0 if they are, or \-1 on error. +.PP +EC_GROUP_have_precompute_mult return 1 if a precomputation has been done, or 0 if not. +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fIcrypto\fR\|(3), \fIec\fR\|(3), \fIEC_GROUP_new\fR\|(3), \fIEC_GROUP_copy\fR\|(3), +\&\fIEC_POINT_new\fR\|(3), \fIEC_KEY_new\fR\|(3), +\&\fIEC_GFp_simple_method\fR\|(3), \fId2i_ECPKParameters\fR\|(3) |
