Which three algorithms should be avoided due to security concerns? (Choose three.)
A. DES for encryption
B. SHA-1 for hashing
C. 1024-bit RSA
D. AES GCM mode for encryption
E. HMAC-SHA-1
F. 256-bit Elliptic Curve Diffie-Hellman
G. 2048-bit Diffie-Hellman
