Overview:

The react-native-crypto module is a port of node's crypto module to React Native, aiming to support environments compatible with React Native. It provides functionalities like hashing, encryption, decryption, key generation, and signing.

Features:

createHash: Supports different hashing algorithms like sha1, sha224, sha256, sha384, sha512, md5, and rmd160.
createHmac: Allows creating hash-based message authentication code using various algorithms like sha1, sha224, sha256, sha384, sha512, md5, and rmd160.
pbkdf2: Provides password-based key derivation function 2 for secure password hashing.
randomBytes: Generates cryptographically strong pseudo-random data.
createCipher and createDecipher: Supports AES encryption and decryption.
createDiffieHellman: Enables Diffie-Hellman key exchange.
createSign and createVerify: Supports creating and verifying digital signatures using RSA and ECDSA algorithms.
createECDH: Allows creating Elliptic Curve Diffie-Hellman key pairs.
publicEncrypt and privateDecrypt: Supports encrypting and decrypting data using the RSA algorithm.

Summary:

The react-native-crypto module offers a wide range of cryptographic functionalities that can be utilized in React Native applications. It serves as a port of node's crypto module, making it easier to implement secure encryption, hashing, and other cryptographic operations in React Native environments. However, users should be aware of the deprecated status of the module and consider using alternative libraries like crypto-browserify for better support and compatibility.

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React Native Crypto

React Native Udp