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- Optimal_asymmetric_encryption_padding abstract "In cryptography, Optimal Asymmetric Encryption Padding (OAEP) is a padding scheme often used together with RSA encryption. OAEP was introduced by Bellare and Rogaway, and subsequently standardized in PKCS #1v2 and RFC 2437.The OAEP algorithm is a form of Feistel network which uses a pair of random oracles G and H to process the plaintext prior to asymmetric encryption. When combined with any secure trapdoor one-way permutation , this processing is proved in the random oracle model to result in a combined scheme which is semantically secure under chosen plaintext attack (IND-CPA). When implemented with certain trapdoor permutations (e.g., RSA), OAEP is also proved secure against chosen ciphertext attack. OAEP can be used to build an all-or-nothing transform.OAEP satisfies the following two goals: Add an element of randomness which can be used to convert a deterministic encryption scheme (e.g., traditional RSA) into a probabilistic scheme.Prevent partial decryption of ciphertexts (or other information leakage) by ensuring that an adversary cannot recover any portion of the plaintext without being able to invert the trapdoor one-way permutation .The original version of OAEP (Bellare/Rogaway, 1994) showed a form of "plaintext awareness" (which they claimed implies security against chosen ciphertext attack) in the random oracle model when OAEP is used with any trapdoor permutation. Subsequent results contradicted this claim, showing that OAEP was only IND-CCA1 secure. However, the original scheme was proved in the random oracle model to be IND-CCA2 secure when OAEP is used with the RSA permutation using standard encryption exponents, as in the case of RSA-OAEP. An improved scheme (called OAEP+) that works with any trapdoor one-way permutation was offered by Victor Shoup to solve this problem.More recent work has shown that in the standard model (that is, when hash functions are not modelled as random oracles), that it is impossible to prove the IND-CCA2 security of RSA-OAEP under the assumed hardness of the RSA problem.".
- Optimal_asymmetric_encryption_padding thumbnail Oaep-diagram-20080305.png?width=300.
- Optimal_asymmetric_encryption_padding wikiPageID "1579249".
- Optimal_asymmetric_encryption_padding wikiPageRevisionID "581503727".
- Optimal_asymmetric_encryption_padding hasPhotoCollection Optimal_asymmetric_encryption_padding.
- Optimal_asymmetric_encryption_padding subject Category:Public-key_encryption_schemes.
- Optimal_asymmetric_encryption_padding type Abstraction100002137.
- Optimal_asymmetric_encryption_padding type Cognition100023271.
- Optimal_asymmetric_encryption_padding type Content105809192.
- Optimal_asymmetric_encryption_padding type Idea105833840.
- Optimal_asymmetric_encryption_padding type Plan105898568.
- Optimal_asymmetric_encryption_padding type PlanOfAction105902545.
- Optimal_asymmetric_encryption_padding type PsychologicalFeature100023100.
- Optimal_asymmetric_encryption_padding type Public-keyEncryptionSchemes.
- Optimal_asymmetric_encryption_padding type Scheme105905348.
- Optimal_asymmetric_encryption_padding comment "In cryptography, Optimal Asymmetric Encryption Padding (OAEP) is a padding scheme often used together with RSA encryption. OAEP was introduced by Bellare and Rogaway, and subsequently standardized in PKCS #1v2 and RFC 2437.The OAEP algorithm is a form of Feistel network which uses a pair of random oracles G and H to process the plaintext prior to asymmetric encryption.".
- Optimal_asymmetric_encryption_padding label "Optimal Asymmetric Encryption Padding".
- Optimal_asymmetric_encryption_padding label "Optimal Asymmetric Encryption Padding".
- Optimal_asymmetric_encryption_padding label "Optimal Asymmetric Encryption Padding".
- Optimal_asymmetric_encryption_padding label "Optimal Asymmetric Encryption Padding".
- Optimal_asymmetric_encryption_padding label "Optimal Asymmetric Encryption Padding".
- Optimal_asymmetric_encryption_padding label "Optimal asymmetric encryption padding".
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- Optimal_asymmetric_encryption_padding wasDerivedFrom Optimal_asymmetric_encryption_padding?oldid=581503727.
- Optimal_asymmetric_encryption_padding depiction Oaep-diagram-20080305.png.
- Optimal_asymmetric_encryption_padding isPrimaryTopicOf Optimal_asymmetric_encryption_padding.
