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| Digitale Signaturverfahren× | SHA-Hashfunktion× | |
|---|---|---|
| Fachgebiet | Kryptographie | Kryptographie |
| Familie | Process / pipeline | Process / pipeline |
| Entstehungsjahr≠ | 1978 | 1993 |
| Urheber≠ | Ronald Rivest, Adi Shamir, Leonard Adleman | National Institute of Standards and Technology (NIST) |
| Typ≠ | Asymmetric signature algorithm | One-way hash algorithm |
| Wegweisende Quelle≠ | Rivest, R. L., Shamir, A., & Adleman, L. (1978). A method for obtaining digital signatures and public-key cryptosystems. Communications of the ACM, 21(2), 120–126. DOI ↗ | National Institute of Standards and Technology (1993). Secure Hash Standard (SHS). Federal Information Processing Standards (FIPS) Publication 180. link ↗ |
| Aliasnamen≠ | Digital Signature Algorithm, Message Authentication and Integrity, Public Key Signature | SHA-1, SHA-256, SHA-512, Secure Hash Algorithm |
| Verwandt | 4 | 4 |
| Zusammenfassung≠ | A digital signature scheme provides authentication, integrity assurance, and non-repudiation of electronically signed documents. Using public-key cryptography (such as RSA, DSA, or ECDSA), the originator signs a message with a private key in a way that any recipient can verify the signature using the originator's public key, proving that the message was created by the claimed author and has not been tampered with. | The Secure Hash Algorithm (SHA) is a family of cryptographic hash functions standardized by NIST starting in 1993. SHA functions produce fixed-length digests from arbitrary-length input data, serving as a fundamental building block for digital signatures, message authentication, and data integrity verification across security-critical applications. |
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