secret sharing
A cryptographic method where a secret is divided into shares, and only a sufficient number of shares can reconstruct the original secret. Used in information security.
Secret sharing is a technique used to store passwords securely.
暗号 is a broader term for cryptography or cipher, while 秘密分散 specifically refers to the secret sharing scheme.
Compound of 秘密 (secret) and 分散 (distribution, dispersion). The term is a direct translation of the English 'secret sharing' in the field of cryptography.