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How to process or manage Key-Encryption-Key using HSM? 1 Data-Encryption-Key (DEK) 2 Key-Encryption-Key (KEK) KEK will be securely stored in HSM, which will be encrypted using master key Data Encryption Key will be decrypted using KEK Based on the above concept, my doubts are: Do we need to send the Encrypted DEK to the HSM for decrypting it or Do we need to decrypt the KEK and retrieve it from HSM ?
Why is there a des-ede3-cbc in my rsa private key? Why is there des-ede3-cbs in my rsa private key? Because your private key is encrypted with that As far as I know "DES" is an encryption standard from the seventies and it's considered broken Yup Pretty much Consider reencrypting it with AES like so: $ openssl rsa -in desencryptedprivkey pem -out aesencryptedprivkey pem -aes128 EDIT 2015-06-29: Good enough after all Reading Bruno's answer
cryptography - Exchange of DEK and KEK (encryption keys) between app . . . To make the system more secure, instead of storing DEK in plain text in the app server, it is stored in encrypted form (en_dek) in the app server The key to encrypt the DEK is stored in a totally separate server and is called the Key Encryption Key (KEK)
password management - Information Security Stack Exchange The below is some JavaDoc from a different bit of code that is for using a DEK to protect secrets like credentials in an application public class SecretGenerator extends java lang Object Static methods used to generate secret key material and passwords All methods require the caller supply a 'Data Encrypting Key' (DEK)
encryption - How to Encrypt Credit Card number for storing it in sql . . . Strong cryptography with associated key-management processes and procedures My question based on above requirement is: So if need to encrypt the credit card details which one would be a better process? If we are going to encrypt credit card number for storage, then we should have Data Encryption Key (DEK) for encrypting the credit card number
Hierarchical Key Rotation. Should I rotate the lowest level keys? Ultimately, your DEK is the critical one - if someone has your data and your DEK then it is game over Moreover, if someone has access to your data and the DEK then rotating all the other keys won't matter Still, only you can decide whether or not it is worth the effort to rotate the DEK Hence the question: what is your threat model?
encryption - Letting client encrypt his her data. How to ensure the . . . A much better approach would be to create two keys: A data encryption key (DEK) and a key encryption key (KEK) The DEK is chosen randomly through a proper cryptographically secure pseudo-random generator When implemented correctly, the DEK is impossible to crack You can either choose one DEK per user, or one DEK per file
How to encrypt data in frontend backend with a key that is not stored . . . 13 Upon initial user registration, generate a strong encryption key using a cryptographically secure pseudorandom number generator; this key will serve as the Data Encryption Key (DEK) to encrypt the user's data But you don't want to store the DEK anywhere, at least in its plaintext form