Variable AESGCMConst

AES-GCM encryption algorithm.

Initialization Vectors must be 12 octets. During encryption, if IV is unspecified, it is constructed with two parts:

Li

a 64-bit random number, generated each time a private key instance is constructed;

Li

a 32-bit counter starting from zero.

During decryption, quality of IV is not automatically checked. Since the security of AES-GCM depends on having unique IVs, the application is recommended to check IVs using CounterIvChecker type.