Supported ECDSA Curves
The following ECDSA curves are currently supported by the Bouncy Castle APIs.
F p
X9.62
| Curve |
Size (in bits) |
| prime192v1 |
192 |
| prime192v2 |
192 |
| prime192v3 |
192 |
| prime239v1 |
239 |
| prime239v2 |
239 |
| prime239v3 |
239 |
| prime256v1 |
256 |
SEC
| Curve |
Size (in bits) |
| secp224r1 |
224 |
| secp256r1 |
256 |
| secp384r1 |
384 |
| secp521r1 |
521 |
NIST (aliases for SEC curves)
| Curve |
Size (in bits) |
| P-224 |
224 |
| P-256 |
256 |
| P-384 |
384 |
| P-521 |
521 |
F 2m
X9.62
| Curve |
Size (in bits) |
| c2pnb163v1 |
163 |
| c2pnb163v2 |
163 |
| c2pnb163v3 |
163 |
| c2pnb176w1 |
176 |
| c2tnb191v2 |
191 |
| c2tnb191v1 |
191 |
| c2tnb191v3 |
191 |
| c2pnb208w1 |
208 |
| c2tnb239v1 |
239 |
| c2tnb239v2 |
239 |
| c2tnb239v3 |
239 |
| c2pnb272w1 |
272 |
| c2pnb304w1 |
304 |
| c2tnb359v1 |
359 |
| c2pnb368w1 |
368 |
| c2tnb431r1 |
431 |
SEC
| Curve |
Size (in bits) |
| sect163r2 |
163 |
| sect233r1 |
233 |
| sect283r1 |
283 |
| sect409r1 |
409 |
| sect571r1 |
571 |
NIST (aliases for SEC curves)
| Curve |
Size (in bits) |
| B-163 |
163 |
| B-233 |
233 |
| B-283 |
283 |
| B-409 |
409 |
| B-571 |
571 |
Teletrust
| Curve |
Size (in bits) |
| brainpoolp160r1 |
160 |
| brainpoolp160t1 |
160 |
| brainpoolp192r1 |
192 |
| brainpoolp192t1 |
192 |
| brainpoolp224r1 |
224 |
| brainpoolp224t1 |
224 |
| brainpoolp256r1 |
256 |
| brainpoolp256t1 |
256 |
| brainpoolp320r1 |
320 |
| brainpoolp320t1 |
320 |
| brainpoolp384r1 |
384 |
| brainpoolp384t1 |
384 |
| brainpoolp512r1 |
512 |
| brainpoolp512t1 |
512 |
Supported ECGOST (GOST3410-2001) Curves
The following ECGOST curves are currently supported by the Bouncy Castle APIs.
| Curve |
| GostR3410-2001-CryptoPro-A |
| GostR3410-2001-CryptoPro-XchB |
| GostR3410-2001-CryptoPro-XchA |
| GostR3410-2001-CryptoPro-C |
| GostR3410-2001-CryptoPro-B |
Supported Curves (ECDSA and ECGOST)