Supported ECC Curves
The following table lists all supported Elliptic Curve Cryptography (ECC) curves and their Object Identifiers (OID, expressed in dot notation and byte format).
NOTE When HSM policy 12: Allow non-FIPS algorithms is disabled (FIPS mode):
>curves with length 224-bits or greater can be used for all operations
>curves >= 160-bits and < 224-bits can be used for signature verification only
>curves less than 160-bits are not permitted
These restrictions comply with the recommendations in NIST SP 800-131A Rev2.
| Curve Name(s) | OID (dot) | OID (byte) | Security Strength (bits) |
|---|---|---|---|
| brainpoolP160r1 | 1.3.36.3.3.2.8.1.1.1 | 06 09 2B 24 03 03 02 08 01 01 01 | 80 |
| brainpoolP160t1 | 1.3.36.3.3.2.8.1.1.2 | 06 09 2B 24 03 03 02 08 01 01 02 | 80 |
| brainpoolP192r1 | 1.3.36.3.3.2.8.1.1.3 | 06 09 2B 24 03 03 02 08 01 01 03 | 96 |
| brainpoolP192t1 | 1.3.36.3.3.2.8.1.1.4 | 06 09 2B 24 03 03 02 08 01 01 04 | 96 |
| brainpoolP224r1 | 1.3.36.3.3.2.8.1.1.5 | 06 09 2B 24 03 03 02 08 01 01 05 | 112 |
| brainpoolP224t1 | 1.3.36.3.3.2.8.1.1.6 | 06 09 2B 24 03 03 02 08 01 01 06 | 112 |
| brainpoolP256r1 | 1.3.36.3.3.2.8.1.1.7 | 06 09 2B 24 03 03 02 08 01 01 07 | 128 |
| brainpoolP256t1 | 1.3.36.3.3.2.8.1.1.8 | 06 09 2B 24 03 03 02 08 01 01 08 | 128 |
| brainpoolP320r1 | 1.3.36.3.3.2.8.1.1.9 | 06 09 2B 24 03 03 02 08 01 01 09 | 160 |
| brainpoolP320t1 | 1.3.36.3.3.2.8.1.1.10 | 06 09 2B 24 03 03 02 08 01 01 0a | 160 |
| brainpoolP384r1 | 1.3.36.3.3.2.8.1.1.11 | 06 09 2B 24 03 03 02 08 01 01 0b | 192 |
| brainpoolP384t1 | 1.3.36.3.3.2.8.1.1.12 | 06 09 2B 24 03 03 02 08 01 01 0c | 192 |
| brainpoolP512r1 | 1.3.36.3.3.2.8.1.1.13 | 06 09 2B 24 03 03 02 08 01 01 0d | 256 |
| brainpoolP512t1 | 1.3.36.3.3.2.8.1.1.14 | 06 09 2B 24 03 03 02 08 01 01 0e | 256 |
| c2pnb163v1 (X9.62 c2pnb163v1) | 1.2.840.10045.3.0.1 | 06 08 2A 86 48 CE 3D 03 00 01 | 81 |
| c2pnb163v2 (X9.62 c2pnb163v2) | 1.2.840.10045.3.0.2 | 06 08 2A 86 48 CE 3D 03 00 02 | 81 |
| c2pnb163v3 (X9.62 c2pnb163v3) | 1.2.840.10045.3.0.3 | 06 08 2A 86 48 CE 3D 03 00 03 | 81 |
|
c2pnb176w1 (X9.62 c2pnb176w1) c2pnb176v1 (X9.62 c2pnb176v1) |
1.2.840.10045.3.0.4 | 06 08 2A 86 48 CE 3D 03 00 04 |
88 |
| c2pnb208w1 (X9.62 c2pnb208w1) | 1.2.840.10045.3.0.10 | 06 08 2A 86 48 CE 3D 03 00 0A | 104 |
| c2pnb272w1 (X9.62 c2pnb272w1) | 1.2.840.10045.3.0.16 | 06 08 2A 86 48 CE 3D 03 00 10 | 136 |
| c2pnb304w1 (X9.62 c2pnb304w1) | 1.2.840.10045.3.0.17 | 06 08 2A 86 48 CE 3D 03 00 11 | 152 |
| c2pnb368w1 (X9.62 c2pnb368w1) | 1.2.840.10045.3.0.19 | 06 08 2A 86 48 CE 3D 03 00 13 | 184 |
| c2tnb191v1 (X9.62 c2tnb191v1) | 1.2.840.10045.3.0.5 | 06 08 2A 86 48 CE 3D 03 00 05 | 96 |
| c2tnb191v2 (X9.62 c2tnb191v2) | 1.2.840.10045.3.0.6 | 06 08 2A 86 48 CE 3D 03 00 06 | 96 |
| c2tnb191v3 (X9.62 c2tnb191v3) | 1.2.840.10045.3.0.7 | 06 08 2A 86 48 CE 3D 03 00 07 | 96 |
| c2tnb239v1 (X9.62 c2tnb239v1) | 1.2.840.10045.3.0.11 | 06 08 2A 86 48 CE 3D 03 00 0B | 120 |
| c2tnb239v2 (X9.62 c2tnb239v2) | 1.2.840.10045.3.0.12 | 06 08 2A 86 48 CE 3D 03 00 0C | 120 |
| c2tnb239v3 (X9.62 c2tnb239v3) | 1.2.840.10045.3.0.13 | 06 08 2A 86 48 CE 3D 03 00 0D | 120 |
| c2tnb359v1 (X9.62 c2tnb359v1) | 1.2.840.10045.3.0.18 | 06 08 2A 86 48 CE 3D 03 00 12 | 180 |
| c2tnb431r1 (X9.62 c2tnb431r1) | 1.2.840.10045.3.0.20 | 06 08 2A 86 48 CE 3D 03 00 14 | 215 |
| Ed25519 (edwards25519) | 1.3.6.1.4.1.11591.15.1 | 06 09 2B 06 01 04 01 DA 47 0F 01 | 128 |
| prime192v1 (X9.62 prime192v1, secp192r1) | 1.2.840.10045.3.1.1 | 06 08 2A 86 48 CE 3D 03 01 01 | 96 |
| prime192v2 (X9.62 prime192v2) | 1.2.840.10045.3.1.2 | 06 08 2A 86 48 CE 3D 03 01 02 | 96 |
| prime192v3 (X9.62 prime192v3) | 1.2.840.10045.3.1.3 | 06 08 2A 86 48 CE 3D 03 01 03 | 96 |
| prime239v1 (X9.62 prime239v1) | 1.2.840.10045.3.1.4 | 06 08 2A 86 48 CE 3D 03 01 04 | 120 |
| prime239v2 (X9.62 prime239v2) | 1.2.840.10045.3.1.5 | 06 08 2A 86 48 CE 3D 03 01 05 | 120 |
| prime239v3 (X9.62 prime239v3) | 1.2.840.10045.3.1.6 | 06 08 2A 86 48 CE 3D 03 01 06 | 120 |
| prime256v1 (X9.62 prime256v1, secp256r1) | 1.2.840.10045.3.1.7 | 06 08 2A 86 48 CE 3D 03 01 07 | 128 |
| secp112r1 | 1.3.132.0.6 | 06 05 2B 81 04 00 06 | 56 |
| secp112r2 | 1.3.132.0.7 | 06 05 2B 81 04 00 07 | 56 |
| secp128r1 | 1.3.132.0.28 | 06 05 2B 81 04 00 1C | 64 |
| secp128r2 | 1.3.132.0.29 | 06 05 2B 81 04 00 1D | 64 |
| secp160k1 | 1.3.132.0.9 | 06 05 2B 81 04 00 09 | 80 |
| secp160r1 | 1.3.132.0.8 | 06 05 2B 81 04 00 08 | 80 |
| secp160r2 | 1.3.132.0.30 | 06 05 2B 81 04 00 1E | 80 |
| secp192k1 | 1.3.132.0.31 | 06 05 2B 81 04 00 1F | 96 |
| secp224k1 | 1.3.132.0.32 | 06 05 2B 81 04 00 20 | 112 |
| secp224r1 | 1.3.132.0.33 | 06 05 2B 81 04 00 21 | 112 |
| secp256k1 | 1.3.132.0.10 | 06 05 2B 81 04 00 0A | 128 |
| secp384r1 | 1.3.132.0.34 | 06 05 2B 81 04 00 22 | 192 |
| secp521r1 | 1.3.132.0.35 | 06 05 2B 81 04 00 23 | 260 |
| sect113r1 | 1.3.132.0.4 | 06 05 2B 81 04 00 04 | 56 |
| sect113r2 | 1.3.132.0.5 | 06 05 2B 81 04 00 05 | 56 |
| sect131r1 | 1.3.132.0.22 | 06 05 2B 81 04 00 16 | 64 |
| sect131r2 | 1.3.132.0.23 | 06 05 2B 81 04 00 17 | 64 |
| sect163k1 | 1.3.132.0.1 | 06 05 2B 81 04 00 01 | 80 |
| sect163r1 | 1.3.132.0.2 | 06 05 2B 81 04 00 02 | 80 |
| sect163r2 | 1.3.132.0.15 | 06 05 2B 81 04 00 0F | 80 |
| sect193r1 | 1.3.132.0.24 | 06 05 2B 81 04 00 18 | 96 |
| sect193r2 | 1.3.132.0.25 | 06 05 2B 81 04 00 19 | 96 |
| sect233k1 | 1.3.132.0.26 | 06 05 2B 81 04 00 1A | 112 |
| sect233r1 | 1.3.132.0.27 | 06 05 2B 81 04 00 1B | 112 |
| sect239k1 | 1.3.132.0.3 | 06 05 2B 81 04 00 03 | 115 |
| sect283k1 | 1.3.132.0.16 | 06 05 2B 81 04 00 10 | 128 |
| sect283r1 | 1.3.132.0.17 | 06 05 2B 81 04 00 11 | 128 |
| sect409k1 | 1.3.132.0.36 | 06 05 2B 81 04 00 24 | 192 |
| sect409r1 | 1.3.132.0.37 | 06 05 2B 81 04 00 25 | 192 |
| sect571k1 | 1.3.132.0.38 | 06 05 2B 81 04 00 26 | 256 |
| sect571r1 | 1.3.132.0.39 | 06 05 2B 81 04 00 27 | 256 |
| X25519 (curve25519) | 1.3.6.1.4.1.3029.1.5.1 | 06 0a 2b 06 01 04 01 97 55 01 05 01 | 128 |
For additional information about the Elliptic Curve specification, refer to this article:
