You're confusing symmetric and asymmetric cryptography, it's such a basic mistake that maybe you should not comment on cryptography until you've read some more.

You're confusing symmetric and asymmetric cryptography, it's such a basic mistake that maybe you should not comment on cryptography until you've read some more. SHA-256, SHA-3-256, BLAKE2, BLAKE3, etc. are all not-broken and have "128 bits of security". 256bit ECC like NISP P-256 ECDHE, ECDSA and ECIES, X25519 ECDHE and Ed25519 EdDSA are not-broken and have "128 bits of security". RSA and FFDHE at 3072 bit are not broken and have about "128 bits of security". RSA-2048 remains very popular, although it is only about 112 bits of security. See https://security.stackexchange.com/a/230713/70830 https://security.stackexchange.com/a/230713/70830 and the links from it for more info.