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What (who) is encryption key - definition

PIECE OF INFORMATION IN CRYPTOGRAPHY

Cryptography/Key; Secret key; Encryption key; Cryptographic keys; Cryptographic key; Key (cryptology); Cryptovariable; Cryptovariables

Key (cryptography)

A key in cryptography is a piece of information, usually a string of numbers or letters that are stored in a file, which, when processed through a cryptographic algorithm, can encode or decode cryptographic data. Based on the used method, the key can be different sizes and varieties, but in all cases, the strength of the encryption relies on the security of the key being maintained.

https://en.wikipedia.org/wiki/Key_(cryptography)

public-key encryption

CRYPTOSYSTEM THAT USES BOTH PUBLIC AND PRIVATE KEYS

Private key; Asymmetric key algorithm; Public key algorithm; Public key; Public key cryptography; Asymmetric key cryptography; Public key encyption; Public key crytography; Asymmetric key; Asymmetric key encryption algorithm; Public key encryption; Public-key encryption; Public-key; Asymmetric key encryption; Asymmetric cryptography; Non-secret encryption; Asymmetric key algorithms; Asymmetric encryption; Keypair cryptography; Public Key Cryptography; Private key encryption; Public-key cryptosystem; Public key cryptosystem; Assymetric key cryptography; PubKey; Asymmetric-key cryptography; Asynchronous encryption; Public/private key cryptography; Asymmetric-key algorithm; Key pair; Keypair; Key Pair; Asymmetric crypto; Public encryption key; Asymmetric cryptosystem; Asymmetric cypher; Asymmetric cipher; Asymmetric algorithm; Asymmetric Algorithms; Public Key Encryption; Private Key Encryption; Secret-key; Key pairs; Asymmetric-key cryptosystem; Public key pair; Public-key encrytption; Asymmetrical encryption; Private keys; Applications of public-key cryptography

<cryptography> (PKE, Or "public-key cryptography") An encryption scheme, introduced by Diffie and Hellman in 1976, where each person gets a pair of keys, called the public key and the private key. Each person's public key is published while the private key is kept secret. Messages are encrypted using the intended recipient's public key and can only be decrypted using his private key. This is often used in conjunction with a digital signature. The need for sender and receiver to share secret information (keys) via some secure channel is eliminated: all communications involve only public keys, and no private key is ever transmitted or shared. Public-key encryption can be used for authentication, confidentiality, integrity and non-repudiation. RSA encryption is an example of a public-key cryptosystem. {alt.security FAQ (http://cis.ohio-state.edu/hypertext/faq/bngusenet/alt/security/top.html)}. See also knapsack problem. (1995-03-27)

Symmetric-key algorithm

ALGORITHM

Symmetric Algorithms; Symmetric key; Symmetric encryption; Symmetric key cryptography; Symmetric cypher; Shared key; Symmetric cipher; Symmetric-key cipher; Symmetric key algorithms; Symmetric cryptography; Private-key cryptography; Symmetric key encryption; Symmetric key algorithm; Reciprocal cipher; Reciprocal encipherment; Private key cryptography; Symmetric-key encryption algorithm; Symmetric-key cryptography; Private-key; Symmetric algorithm; Private-key encryption; Symmetrical encryption

Symmetric-key algorithms are algorithms for cryptography that use the same cryptographic keys for both the encryption of plaintext and the decryption of ciphertext. The keys may be identical, or there may be a simple transformation to go between the two keys.

https://en.wikipedia.org/wiki/Symmetric-key_algorithm

Wikipedia

Key (cryptography)

A key in cryptography is a piece of information, usually a string of numbers or letters that are stored in a file, which, when processed through a cryptographic algorithm, can encode or decode cryptographic data. Based on the used method, the key can be different sizes and varieties, but in all cases, the strength of the encryption relies on the security of the key being maintained. A key's security strength is dependent on its algorithm, the size of the key, the generation of the key, and the process of key exchange.

https://en.wikipedia.org/wiki/Key (cryptography)

Examples of use of encryption key

1. As Chloe, Rajskub could spurt computerese (things like "interlaced encryption key") and sound like she knew what she was talking about.

2. All that users need to do is set the Wi–Fi card on their device to search for «Bayanat.» No extra settings, like an encryption key or an IP address.

3. MAIN POINTS New offence of encouraging or glorifying acts of terrorism New offence of acts preparatory to terrorism Widens grounds for proscribing groups as illegal Extends period for detention to '0 days with judicial consent Raises penalty for failing to provide software encryption key

4. At present, police can hold suspects for a maximum of 14 days under terrorism legislation, often insufficient time to break into whatever information their computers may contain. ‘A lot of the stuff that we have on computers is encrypted, and for that reason I am interested in creating an offence of refusing to reveal an encryption key,‘ Blair said. ‘It has to be punishable by a term of at least 10 years.‘ However, the civil rights group Liberty says the proposals are ‘like suggesting that the police should be able to steam open your mail after you‘ve put it in the post box‘. The Association of Chief Police Officers has called for new offences to tackle use of the internet, such as blocking terrorist websites.