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Manual Reference Pages  - DH_size (3)

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DH_size - get Diffie-Hellman prime size

CONTENTS

 #include <openssl/dh.h>

 int DH_size(DH *dh);

This function returns the Diffie-Hellman size in bytes. It can be used to determine how much memory must be allocated for the shared secret computed by DH_compute_key().

dh->p must not be NULL.

The size in bytes.

dh(3), DH_generate_key(3)

DH_size() is available in all versions of SSLeay and OpenSSL.

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