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  1. Public-key cryptography - Wikipedia

    In a public-key encryption system, anyone with a public key can encrypt a message, yielding a ciphertext, but only those who know the corresponding private key can decrypt the ciphertext to …

  2. Public Key Encryption - GeeksforGeeks

    Jul 11, 2025 · Public key cryptography is a method of secure communication that uses a pair of keys, a public key, which anyone can use to encrypt messages or verify signatures, and a private key, which …

  3. What is a public key and how does it work? - TechTarget

    Dec 23, 2024 · In cryptography, a public key is a large numerical value that is used to encrypt data. The key can be generated by a software program, but more often, it is provided by a trusted, designated …

  4. How does public key cryptography work? - Cloudflare

    Public key cryptography is a method of encrypting or signing data with two different keys and making one of the keys, the public key, available for anyone to use. The other key is known as the private …

  5. What is public key encryption? - IBM

    Public key encryption is a type of cryptographic system that uses a mathematically linked pair of keys—one public, one private—to encrypt and decrypt data.

  6. Public-key cryptography | Encryption, Decryption & Security

    Nov 28, 2025 · public-key cryptography, asymmetric form of cryptography in which the transmitter of a message and its recipient use different keys (codes), thereby eliminating the need for the sender to …

  7. What is Public-Key Cryptography? - SSL.com

    Sep 24, 2024 · Public-key cryptography, also known as asymmetric cryptography, is a fundamental concept in modern cybersecurity. It uses a pair of keys—a public key and a private key—to encrypt …

  8. What is Public Key Cryptography? Learn How It Works

    May 15, 2025 · What Is Public Key Cryptography? Public key cryptography, also known as asymmetric encryption, is a method of securing digital communication using a pair of keys: a public key and a …

  9. Public Key Cryptography: A Comprehensive Guide 2025

    Feb 3, 2025 · The seminal 1976 paper by Whitfield Diffie and Martin Hellman, “New Directions in Cryptography,” introduced the concept of public key cryptography, solving the key distribution …

  10. What is Public Key Cryptography? | DigiCert FAQ

    What is Public Key Cryptography? Public Key Cryptography, also known as asymmetric cryptography, uses an asymmetric algorithm to generate a pair of keys (a public and private key pair) for the …