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131 .IX Title "RSA_size 3"
132 .TH RSA_size 3 "2006-11-19" "0.9.8d" "OpenSSL"
134 RSA_size \- get RSA modulus size
136 .IX Header "SYNOPSIS"
138 \& #include <openssl/rsa.h>
142 \& int RSA_size(const RSA *rsa);
145 .IX Header "DESCRIPTION"
146 This function returns the \s-1RSA\s0 modulus size in bytes. It can be used to
147 determine how much memory must be allocated for an \s-1RSA\s0 encrypted
150 \&\fBrsa\->n\fR must not be \fB\s-1NULL\s0\fR.
152 .IX Header "RETURN VALUE"
155 .IX Header "SEE ALSO"
159 \&\fIRSA_size()\fR is available in all versions of SSLeay and OpenSSL.