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How to Fake an RSA Signature by Encoding

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The document discusses a method for faking RSA signatures by encoding the problem of finding e-th roots modulo n as a satisfiability (SAT) problem. It builds on the framework of logical cryptanalysis, which translates properties of cryptographic algorithms into SAT problems to generate challenging benchmarks. The authors propose an encoding that allows for the generation of both satisfiable and unsatisfiable instances without requiring factorization of the modulus n. Experimental results are presented comparing various SAT solvers' performances against traditional factoring methods, highlighting the potential and limitations of SAT-based approaches in cryptographic contexts.

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Can RSA algorithm be used for implementing digital signature?

The RSA digital signature algorithm is a cryptographic technique used to ensure the authenticity and integrity of a message. Its security is underpinned by the mathematical principles of number theory, particularly the difficulty of factoring large composite numbers.

What is DSS and RSA approach for creating digital signature?

RSA is based on prime numbers and uses one key pair for both encryption and signature. DSS uses the DSA algorithm with distinct key pairs for signing and verification. Security. RSA is more robust but can be potentially vulnerable to quantum attacks.

What is the signature format for RSA?

The signature is 1024-bit integer (128 bytes, 256 hex digits). This signature size corresponds to the RSA key size. Run the above code example: . Run the above code example: .

Which algorithm to use for digital signature?

DSA and RSA are both cryptographic algorithms used for digital signatures and encryption.

What are the two approaches of digital signature RSA approach DSS approach?

Lets go over the key distinctions between these two approaches: Algorithm. RSA is based on prime numbers and uses one key pair for both encryption and signature. DSS uses the DSA algorithm with distinct key pairs for signing and verification.

How to generate signature in RSA?

This is done using a hash function, which produces a fixed-length output (the hash value) from an input of any size. Signing: The hash value is then encrypted using the private key of the signer. This produces the digital signature, which is attached to the original message or document.

Can RSA be used for digital signature?

RSA (Rivest-Shamir-Adleman) is a widely used public-key cryptosystem that can be used for digital signatures. A digital signature is a mathematical scheme that is used to verify the authenticity of digital documents or messages.

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