DH_size 3 2000-07-16 0.9.9-dev OpenSSL

### NAME

DH_size - get Diffie-Hellman prime size

### LIBRARY

libcrypto, -lcrypto

### SYNOPSIS

     #include

     int DH_size(DH *dh);

### DESCRIPTION

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.

### RETURN VALUE

The size in bytes.

### SEE ALSO

openssl_dh(3), DH_generate_key(3)

### HISTORY

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