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