Symmetric8 shown / 85 total3 recommended124 sources citedReviewed April 2026

Symmetric Encryption

The padlock on your data. One key locks it, same key unlocks it.

Select cards to compare algorithms side by side.

AES-256-GCMNIST StandardRecommended default

AES·🇧🇪 BelgiumMarch 2026

General-purpose authenticated encryption. TLS 1.3, disk encryption, government classified data.

2 sources·Standards-backed

ARIA-256Korean Standard KS X 1213Acceptable (constrained)

ARIA·🇰🇷 South KoreaMarch 2026

Korean government and financial systems.

2 sources·Standards-backed

Camellia-256CRYPTREC / ISO / IETFAcceptable (constrained)

Camellia·🇯🇵 JapanMarch 2026

Japanese government, TLS suites, NESSIE-approved applications.

2 sources·Standards-backed

ChaCha20-Poly1305IETF RFC 8439Recommended default

ChaCha·🇺🇸 United StatesMarch 2026

Authenticated encryption without AES hardware. Mobile, TLS 1.3 fallback, WireGuard.

1 source·Standards-backed

KuznyechikGOST R 34.12-2015Acceptable (constrained)

GOST·🇷🇺 RussiaMarch 2026

Russian government and military systems.

2 sources·Standards-backed

SM4GB/T 32907 / ISO 18033-3Acceptable (constrained)

SM4·🇨🇳 ChinaMarch 2026

Chinese government, banking, wireless LAN (WAPI).

2 sources·Standards-backed

SNOW-V3GPP / ISO/IEC 18033-4Acceptable (constrained)

SNOW·🇸🇪 SwedenApril 2026

5G confidentiality and integrity (3GPP). High-throughput stream encryption. Successor to SNOW 3G used in 4G/LTE.

4 sources·Standards-backed

XChaCha20-Poly1305IETF Draft / libsodiumRecommended default

ChaCha·🇺🇸 United StatesMarch 2026

File/at-rest encryption needing random nonces safely. libsodium default.

2 sources·Standards-backed