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The Curse of Small Domains: New Attacks on Format-Preserving Encryption
Format-preserving encryption attacks
2018/6/5
Format-preserving encryption (FPE) produces ciphertexts which have the same format as the plaintexts. Building secure FPE is very challenging, and recent attacks (Bellare, Hoang, Tessaro, CCS '16; Dur...
Identity-Based Format-Preserving Encryption
identity-based cryptography format-preserving encryption tweakable blockcipher
2017/9/14
We introduce identity-based format-preserving encryption (IB-FPE) as a way to localize and limit the damage to format-preserving encryption (FPE) from key exposure. We give definitions, relations betw...
Breaking the FF3 Format-Preserving Encryption Standard Over Small Domains
Format-Preserving Encryption Feistel Networks Tweakable Encryption
2017/6/6
The National Institute of Standards and Technology (NIST) recently published a Format-Preserving Encryption standard accepting two Feistel structure based schemes called FF1 and FF3. Particularly, FF3...
Message-recovery attacks on Feistel-based Format Preserving Encryption
Format-preserving encryption attacks
2016/12/10
We give attacks on Feistel-based format-preserving encryption (FPE) schemes that succeed in message recovery (not merely distinguishing scheme outputs from random) when the message space is small. For...
We propose storage efficient SQL-aware encrypted databases that preserve the format of the fields. We give experimental results of storage improvements in CryptDB using FNR encryption scheme.
FORMAT-CONTROLLING ENCRYPTION USING DATATYPE-PRESERVING ENCRYPTION
DTP FCE Datatype-Preserving Encryption
2009/6/15
Datatype-Preserving Encryption (DTP) enables encryption of values within a certain character set into
ciphertext restricted to the same set, while still keeping data length. This is in contrast to co...
In the encryption of credit-card data as well as other applications, we may want to encipher
in such a way that a certain property of the plaintext is preserved in the ciphertext. This paper
initiat...
Sphinx is a cryptographic message format used to
relay anonymized messages within a mix network. It
is more compact than any comparable scheme, and
supports a full set of security features: indisti...
Attack on Private Signature Keys of the OpenPGP format, PGPTM programs and other applications
Private Signature Keys OpenPGP format PGPTM programs
2009/4/14
The article describes an attack on OpenPGP format, which leads to disclosure of the private signature
keys of the DSA and RSA algorithms. The OpenPGP format is used in a number of applications includ...
Side Channel Attacks on CBC Encrypted Messages in the PKCS#7 Format
CBC symmetrical encryption padding
2009/4/9
Vaudenay has shown in [5] that a CBC encryption mode ([2], [9]) combined with the PKCS#5 padding [3]
scheme allows an attacker to invert the underlying block cipher, provided she has access to a vali...