Which hashing method is used to password protect Blackberry devices?

Which hashing method is used to password protect Blackberry devices?

• A. AES
• B. RC5
• C. MD5
• D. SHA-1

Answer: (D)

BlackBerry devices protect the password by storing a one-way digest rather than the plaintext password. When you enter a password to unlock the device, the system computes a SHA-1 hash of that input and compares it to the stored SHA-1 digest. If they match, access is granted. This approach means the actual password isn’t recoverable from the stored value, which is why a hash function is used for verification rather than encryption. Among the options, AES and RC5 are encryption algorithms, not used for password verification in this context. MD5 is an older hash function but SHA-1 was the standard used for this purpose in many BlackBerry implementations. Therefore, SHA-1 is the correct choice.

BlackBerry devices protect the password by storing a one-way digest rather than the plaintext password. When you enter a password to unlock the device, the system computes a SHA-1 hash of that input and compares it to the stored SHA-1 digest. If they match, access is granted. This approach means the actual password isn’t recoverable from the stored value, which is why a hash function is used for verification rather than encryption. Among the options, AES and RC5 are encryption algorithms, not used for password verification in this context. MD5 is an older hash function but SHA-1 was the standard used for this purpose in many BlackBerry implementations. Therefore, SHA-1 is the correct choice.