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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 |
| c2tnb191v1 | 191 |
| c2tnb191v2 | 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 |
