gcm_encrypt_authenticate¶

 my ($ciphertext, $tag) = gcm_encrypt_authenticate($cipher, $key, $iv, $adata, $plaintext);
 # $cipher .. 'AES' or name of any other cipher with 16-byte block len
 # $key ..... AES key of proper length (128/192/256bits)
 # $iv ...... initialization vector
 # $adata ... additional authenticated data

gcm_decrypt_verify¶

 my $plaintext = gcm_decrypt_verify($cipher, $key, $iv, $adata, $ciphertext, $tag);
 # on error returns undef

new¶

 my $ae = Crypt::AuthEnc::GCM->new($cipher, $key);
 #or
 my $ae = Crypt::AuthEnc::GCM->new($cipher, $key, $iv);
 # $cipher .. 'AES' or name of any other cipher
 # $key ..... encryption key of proper length
 # $iv ...... initialization vector (optional, you can set it later via iv_add method)

iv_add¶

Set initialization vector (IV).

 $ae->iv_add($iv_data);                        #can be called multiple times

adata_add¶

Add additional authenticated data. Can be called after all "iv_add" calls but before the first "encrypt_add" or "decrypt_add".

 $ae->adata_add($aad_data);                    # can be called multiple times

encrypt_add¶

 $ciphertext = $ae->encrypt_add($data);        # can be called multiple times

encrypt_done¶

 $tag = $ae->encrypt_done();                   # returns $tag value

decrypt_add¶

 $plaintext = $ae->decrypt_add($ciphertext);   # can be called multiple times

decrypt_done¶

 my $tag = $ae->decrypt_done;           # returns $tag value
 #or
 my $result = $ae->decrypt_done($tag);  # returns 1 (success) or 0 (failure)

reset¶

 $ae->reset;

clone¶

 my $ae_new = $ae->clone;