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Encryption

Encryption, with relation to cryptography, is the transformation of plaintext into ciphertext. Plaintext is any data or information that needs to be protected and the ciphertext is the encrypted information. This transformation is accomplished through the use of cryptographic cipher algorithms. Only those who have the "Key" can transform (decrypt) the ciphertext into plaintext which is why there are Key Handling mechanisms to keep the private key secret.

Encryption protects the privacy/confidentiality of the information but that is only part of the security that needs to be provided. There is also the need for authenticity and integrity and this can be provided by Authentication.

Encryption is done through the use of cipher algorithms, either symmetric (private-key) or asymmetric (public-key).

Encryption Algorithms

Asymmetric (Public-Key) Ciphers	Symmetric (Private-Key) Ciphers
	64-bit Block Ciphers	128-bit Block Ciphers	Stream Ciphers
Rabin	DES	AES	RC4
RSA	TDEA, 3DES, TDES	Camellia	SNOW2
	CAST-128	CAST-256
		SEED
		CCM*
		GCM*
NOTES: * CCM and GCM are actually algorithms that use an 128-bit block cipher to provide not only encryption but also authentication.

 

VOCAL's encryption algorithms are available in software or software assisted by hardware, please contact us for further information.