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Title "BN_mod_mul_montgomery 3"
way too many mistakes in technical documents.
\fBBN_MONT_CTX_new() allocates and initializes a BN_MONT_CTX structure.
\fBBN_MONT_CTX_set() sets up the mont structure from the modulus m by precomputing its inverse and a value R.
\fBBN_MONT_CTX_copy() copies the BN_MONT_CTX from to to.
\fBBN_MONT_CTX_free() frees the components of the BN_MONT_CTX, and, if it was created by BN_MONT_CTX_new(), also the structure itself. If mont is NULL, nothing is done.
\fBBN_mod_mul_montgomery() computes Mont(a,b):=a*b*R^-1 and places the result in r.
\fBBN_from_montgomery() performs the Montgomery reduction r = a*R^-1.
\fBBN_to_montgomery() computes Mont(a,R^2), i.e. a*R. Note that a must be nonnegative and smaller than the modulus.
For all functions, ctx is a previously allocated BN_CTX used for temporary variables.
\fBBN_MONT_CTX_free() has no return value.
For the other functions, 1 is returned for success, 0 on error. The error codes can be obtained by ERR_get_error\|(3).
Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>.