No, even if you know the hash key, you cannot decode or reverse-engineer the password from its hash. This is a fundamental security principle that Ory and other secure systems adhere to. Here's why: 1. One-way function: Password hashing algorithms are designed to be one-way functions. This means that while it's easy to compute the hash from a password, it's computationally infeasible to derive the original password from the hash. 2. Salting: Ory uses salting in its password hashing process. As mentioned in the [Import identities documentation](
https://www.ory.sh/docs/kratos/manage-identities/import-user-accounts-identities#salted-format-hashes-with-salt-1), salts are added to passwords before hashing. This makes it even more difficult to crack the hash, even if you know the hashing algorithm and the salt. 3. Multiple hashing algorithms: Ory supports various hashing algorithms like SHA1, SHA256, SHA512, and others. Each of these is designed to be cryptographically secure and resistant to reverse-engineering. 4. Computational difficulty: Modern hashing algorithms like Argon2, which Ory uses, are designed to be computationally expensive. As noted in the [Performance debugging documentation](
https://www.ory.sh/docs/kratos/debug/performance-out-of-memory-password-hashing-argon2), these algorithms can be tuned to increase security at the cost of more computational resources. 5. Password verification: Instead of decoding, systems like Ory verify passwords by hashing the input and comparing it to the stored hash. If they match, the password is correct. It's important to note that the inability to decode password hashes is a security feature, not a limitation. This design ensures that even if an attacker gains access to the hashed passwords, they cannot easily determine the original passwords.