PrismKitCrypto & SecurityShamir Secret SharingShamir Secret SharingRuns in your browserLocalCopy linkMarkdownSplit a secret into N shares so that any K of them can rebuild it, and combine shares back into the secret.RSA Encrypt and SignEncrypt, decrypt, sign and verify text with RSA keys using RSA-OAEP, PKCS#1 v1.5 or PSS with SHA-256.String ObfuscatorMask the middle of a secret, IBAN, or token so it can be shared and recognised without exposing the whole value.