ETM Gálvez
ETM may refer to: * Encrypt-then-MAC * Energy and Technology Museum, in Vilnius, Lithuania * Entercom, an American broadcasting company * Estuarine turbidity maximum * European Travel Monitor * Ramon International Airport Ramon Airport ( he, נמל התעופה רמון, Arabic: مطار رامون) , named after Ilan and Asaf Ramon and unofficially also known as Eilat-Ramon Airport, is an international airport located in the Timna Valley in southern Israel. Ra ..., in Israel See also * ETM+, an instrument on the Landsat 7 satellite {{disambiguation ...
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Encrypt-then-MAC
Authenticated Encryption (AE) and Authenticated Encryption with Associated Data (AEAD) are forms of encryption which simultaneously assure the confidentiality and authenticity of data. Programming interface A typical programming interface for an AE implementation provides the following functions: * Encryption ** Input: ''plaintext'', ''key'', and optionally a ''header'' in plaintext that will not be encrypted, but will be covered by authenticity protection. ** Output: ''ciphertext'' and ''authentication tag'' (message authentication code or MAC). * Decryption ** Input: ''ciphertext'', ''key'', ''authentication tag'', and optionally a ''header'' (if used during the encryption). ** Output: ''plaintext'', or an error if the ''authentication tag'' does not match the supplied ''ciphertext'' or ''header''. The ''header'' part is intended to provide authenticity and integrity protection for networking or storage metadata for which confidentiality is unnecessary, but authenticity is d ...
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