Plaintext is encrypted in binary form in current cryptography. Each bit in a bit stream is encrypted into its corresponding ciphertext, whereas bits in a block stream are clustered to form groups of bits for the encryption process. The life cycle of a contemporary cryptographic key is explained here.

Plaintext is encrypted in binary form in current cryptography. Each bit in a bit stream is encrypted into its corresponding ciphertext, whereas bits in a block stream are clustered to form groups of bits for the encryption process.

The life cycle of a contemporary cryptographic key is explained here.