mcrypt_enc_get_iv_size -- Returns the size of the IV of the opened algorithm
Syntax
int mcrypt_enc_get_iv_size ( resource td )
This function returns the size of the iv of the algorithm
specified by the encryption descriptor in bytes. If it returns
'0' then the IV is ignored in the algorithm. An IV is used in
cbc, cfb and ofb modes, and in some algorithms in stream mode.
Php mcrypt enc get iv size Function syntax tag
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Php mcrypt enc get iv size syntax tutorial
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