1package org.bouncycastle.crypto.ec; 2 3import java.math.BigInteger; 4import java.util.Enumeration; 5import java.util.Hashtable; 6import java.util.Vector; 7 8import org.bouncycastle.asn1.ASN1ObjectIdentifier; 9import org.bouncycastle.asn1.sec.SECObjectIdentifiers; 10import org.bouncycastle.asn1.x9.X9ECParameters; 11import org.bouncycastle.asn1.x9.X9ECParametersHolder; 12import org.bouncycastle.asn1.x9.X9ECPoint; 13import org.bouncycastle.math.ec.ECCurve; 14import org.bouncycastle.math.ec.ECPoint; 15// BEGIN android-removed 16// import org.bouncycastle.math.ec.custom.djb.Curve25519; 17// import org.bouncycastle.math.ec.custom.sec.SecP128R1Curve; 18// import org.bouncycastle.math.ec.custom.sec.SecP160K1Curve; 19// import org.bouncycastle.math.ec.custom.sec.SecP160R1Curve; 20// import org.bouncycastle.math.ec.custom.sec.SecP160R2Curve; 21// END android-removed 22import org.bouncycastle.math.ec.custom.sec.SecP192K1Curve; 23import org.bouncycastle.math.ec.custom.sec.SecP192R1Curve; 24import org.bouncycastle.math.ec.custom.sec.SecP224K1Curve; 25import org.bouncycastle.math.ec.custom.sec.SecP224R1Curve; 26import org.bouncycastle.math.ec.custom.sec.SecP256K1Curve; 27import org.bouncycastle.math.ec.custom.sec.SecP256R1Curve; 28import org.bouncycastle.math.ec.custom.sec.SecP384R1Curve; 29import org.bouncycastle.math.ec.custom.sec.SecP521R1Curve; 30// BEGIN android-removed 31// import org.bouncycastle.math.ec.custom.sec.SecT113R1Curve; 32// import org.bouncycastle.math.ec.custom.sec.SecT113R2Curve; 33// import org.bouncycastle.math.ec.custom.sec.SecT131R1Curve; 34// import org.bouncycastle.math.ec.custom.sec.SecT131R2Curve; 35// import org.bouncycastle.math.ec.custom.sec.SecT163K1Curve; 36// import org.bouncycastle.math.ec.custom.sec.SecT163R1Curve; 37// import org.bouncycastle.math.ec.custom.sec.SecT163R2Curve; 38// import org.bouncycastle.math.ec.custom.sec.SecT193R1Curve; 39// import org.bouncycastle.math.ec.custom.sec.SecT193R2Curve; 40// import org.bouncycastle.math.ec.custom.sec.SecT233K1Curve; 41// import org.bouncycastle.math.ec.custom.sec.SecT233R1Curve; 42// import org.bouncycastle.math.ec.custom.sec.SecT239K1Curve; 43// import org.bouncycastle.math.ec.custom.sec.SecT283K1Curve; 44// import org.bouncycastle.math.ec.custom.sec.SecT283R1Curve; 45// import org.bouncycastle.math.ec.custom.sec.SecT409K1Curve; 46// import org.bouncycastle.math.ec.custom.sec.SecT409R1Curve; 47// import org.bouncycastle.math.ec.custom.sec.SecT571K1Curve; 48// import org.bouncycastle.math.ec.custom.sec.SecT571R1Curve; 49// END android-removed 50import org.bouncycastle.math.ec.endo.GLVTypeBEndomorphism; 51import org.bouncycastle.math.ec.endo.GLVTypeBParameters; 52import org.bouncycastle.util.Strings; 53import org.bouncycastle.util.encoders.Hex; 54 55public class CustomNamedCurves 56{ 57 private static ECCurve configureCurve(ECCurve curve) 58 { 59 return curve; 60 } 61 62 private static ECCurve configureCurveGLV(ECCurve c, GLVTypeBParameters p) 63 { 64 return c.configure().setEndomorphism(new GLVTypeBEndomorphism(c, p)).create(); 65 } 66 67 // BEGIN Android-removed: Unsupported curves 68 /* 69 /* 70 * curve25519 71 * 72 static X9ECParametersHolder curve25519 = new X9ECParametersHolder() 73 { 74 protected X9ECParameters createParameters() 75 { 76 byte[] S = null; 77 ECCurve curve = configureCurve(new Curve25519()); 78 79 /* 80 * NOTE: Curve25519 was specified in Montgomery form. Rewriting in Weierstrass form 81 * involves substitution of variables, so the base-point x coordinate is 9 + (486662 / 3). 82 * 83 * The Curve25519 paper doesn't say which of the two possible y values the base 84 * point has. The choice here is guided by language in the Ed25519 paper. 85 * 86 * (The other possible y value is 5F51E65E475F794B1FE122D388B72EB36DC2B28192839E4DD6163A5D81312C14) 87 * 88 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 89 + "2AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD245A" 90 + "20AE19A1B8A086B4E01EDD2C7748D14C923D4D7E6D7C61B229E9C5A27ECED3D9")); 91 92 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 93 } 94 }; 95 96 /* 97 * secp128r1 98 * 99 static X9ECParametersHolder secp128r1 = new X9ECParametersHolder() 100 { 101 protected X9ECParameters createParameters() 102 { 103 byte[] S = Hex.decode("000E0D4D696E6768756151750CC03A4473D03679"); 104 ECCurve curve = configureCurve(new SecP128R1Curve()); 105 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 106 + "161FF7528B899B2D0C28607CA52C5B86" 107 + "CF5AC8395BAFEB13C02DA292DDED7A83")); 108 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 109 } 110 }; 111 112 /* 113 * secp160k1 114 * 115 static X9ECParametersHolder secp160k1 = new X9ECParametersHolder() 116 { 117 protected X9ECParameters createParameters() 118 { 119 byte[] S = null; 120 GLVTypeBParameters glv = new GLVTypeBParameters( 121 new BigInteger("9ba48cba5ebcb9b6bd33b92830b2a2e0e192f10a", 16), 122 new BigInteger("c39c6c3b3a36d7701b9c71a1f5804ae5d0003f4", 16), 123 new BigInteger[]{ 124 new BigInteger("9162fbe73984472a0a9e", 16), 125 new BigInteger("-96341f1138933bc2f505", 16) }, 126 new BigInteger[]{ 127 new BigInteger("127971af8721782ecffa3", 16), 128 new BigInteger("9162fbe73984472a0a9e", 16) }, 129 new BigInteger("9162fbe73984472a0a9d0590", 16), 130 new BigInteger("96341f1138933bc2f503fd44", 16), 131 176); 132 ECCurve curve = configureCurveGLV(new SecP160K1Curve(), glv); 133 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 134 + "3B4C382CE37AA192A4019E763036F4F5DD4D7EBB" 135 + "938CF935318FDCED6BC28286531733C3F03C4FEE")); 136 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 137 } 138 }; 139 140 /* 141 * secp160r1 142 * 143 static X9ECParametersHolder secp160r1 = new X9ECParametersHolder() 144 { 145 protected X9ECParameters createParameters() 146 { 147 byte[] S = Hex.decode("1053CDE42C14D696E67687561517533BF3F83345"); 148 ECCurve curve = configureCurve(new SecP160R1Curve()); 149 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 150 + "4A96B5688EF573284664698968C38BB913CBFC82" 151 + "23A628553168947D59DCC912042351377AC5FB32")); 152 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 153 } 154 }; 155 156 /* 157 * secp160r2 158 * 159 static X9ECParametersHolder secp160r2 = new X9ECParametersHolder() 160 { 161 protected X9ECParameters createParameters() 162 { 163 byte[] S = Hex.decode("B99B99B099B323E02709A4D696E6768756151751"); 164 ECCurve curve = configureCurve(new SecP160R2Curve()); 165 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 166 + "52DCB034293A117E1F4FF11B30F7199D3144CE6D" 167 + "FEAFFEF2E331F296E071FA0DF9982CFEA7D43F2E")); 168 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 169 } 170 }; 171 */ 172 // END Android-removed: Unsupported curves 173 174 /* 175 * secp192k1 176 */ 177 static X9ECParametersHolder secp192k1 = new X9ECParametersHolder() 178 { 179 protected X9ECParameters createParameters() 180 { 181 byte[] S = null; 182 GLVTypeBParameters glv = new GLVTypeBParameters( 183 new BigInteger("bb85691939b869c1d087f601554b96b80cb4f55b35f433c2", 16), 184 new BigInteger("3d84f26c12238d7b4f3d516613c1759033b1a5800175d0b1", 16), 185 new BigInteger[]{ 186 new BigInteger("71169be7330b3038edb025f1", 16), 187 new BigInteger("-b3fb3400dec5c4adceb8655c", 16) }, 188 new BigInteger[]{ 189 new BigInteger("12511cfe811d0f4e6bc688b4d", 16), 190 new BigInteger("71169be7330b3038edb025f1", 16) }, 191 new BigInteger("71169be7330b3038edb025f1d0f9", 16), 192 new BigInteger("b3fb3400dec5c4adceb8655d4c94", 16), 193 208); 194 ECCurve curve = configureCurveGLV(new SecP192K1Curve(), glv); 195 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 196 + "DB4FF10EC057E9AE26B07D0280B7F4341DA5D1B1EAE06C7D" 197 + "9B2F2F6D9C5628A7844163D015BE86344082AA88D95E2F9D")); 198 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 199 } 200 }; 201 202 /* 203 * secp192r1 204 */ 205 static X9ECParametersHolder secp192r1 = new X9ECParametersHolder() 206 { 207 protected X9ECParameters createParameters() 208 { 209 byte[] S = Hex.decode("3045AE6FC8422F64ED579528D38120EAE12196D5"); 210 ECCurve curve = configureCurve(new SecP192R1Curve()); 211 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 212 + "188DA80EB03090F67CBF20EB43A18800F4FF0AFD82FF1012" 213 + "07192B95FFC8DA78631011ED6B24CDD573F977A11E794811")); 214 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 215 } 216 }; 217 218 /* 219 * secp224k1 220 */ 221 static X9ECParametersHolder secp224k1 = new X9ECParametersHolder() 222 { 223 protected X9ECParameters createParameters() 224 { 225 byte[] S = null; 226 GLVTypeBParameters glv = new GLVTypeBParameters( 227 new BigInteger("fe0e87005b4e83761908c5131d552a850b3f58b749c37cf5b84d6768", 16), 228 new BigInteger("60dcd2104c4cbc0be6eeefc2bdd610739ec34e317f9b33046c9e4788", 16), 229 new BigInteger[]{ 230 new BigInteger("6b8cf07d4ca75c88957d9d670591", 16), 231 new BigInteger("-b8adf1378a6eb73409fa6c9c637d", 16) }, 232 new BigInteger[]{ 233 new BigInteger("1243ae1b4d71613bc9f780a03690e", 16), 234 new BigInteger("6b8cf07d4ca75c88957d9d670591", 16) }, 235 new BigInteger("6b8cf07d4ca75c88957d9d67059037a4", 16), 236 new BigInteger("b8adf1378a6eb73409fa6c9c637ba7f5", 16), 237 240); 238 ECCurve curve = configureCurveGLV(new SecP224K1Curve(), glv); 239 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 240 + "A1455B334DF099DF30FC28A169A467E9E47075A90F7E650EB6B7A45C" 241 + "7E089FED7FBA344282CAFBD6F7E319F7C0B0BD59E2CA4BDB556D61A5")); 242 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 243 } 244 }; 245 246 /* 247 * secp224r1 248 */ 249 static X9ECParametersHolder secp224r1 = new X9ECParametersHolder() 250 { 251 protected X9ECParameters createParameters() 252 { 253 byte[] S = Hex.decode("BD71344799D5C7FCDC45B59FA3B9AB8F6A948BC5"); 254 ECCurve curve = configureCurve(new SecP224R1Curve()); 255 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 256 + "B70E0CBD6BB4BF7F321390B94A03C1D356C21122343280D6115C1D21" 257 + "BD376388B5F723FB4C22DFE6CD4375A05A07476444D5819985007E34")); 258 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 259 } 260 }; 261 262 /* 263 * secp256k1 264 */ 265 static X9ECParametersHolder secp256k1 = new X9ECParametersHolder() 266 { 267 protected X9ECParameters createParameters() 268 { 269 byte[] S = null; 270 GLVTypeBParameters glv = new GLVTypeBParameters( 271 new BigInteger("7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee", 16), 272 new BigInteger("5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72", 16), 273 new BigInteger[]{ 274 new BigInteger("3086d221a7d46bcde86c90e49284eb15", 16), 275 new BigInteger("-e4437ed6010e88286f547fa90abfe4c3", 16) }, 276 new BigInteger[]{ 277 new BigInteger("114ca50f7a8e2f3f657c1108d9d44cfd8", 16), 278 new BigInteger("3086d221a7d46bcde86c90e49284eb15", 16) }, 279 new BigInteger("3086d221a7d46bcde86c90e49284eb153dab", 16), 280 new BigInteger("e4437ed6010e88286f547fa90abfe4c42212", 16), 281 272); 282 ECCurve curve = configureCurveGLV(new SecP256K1Curve(), glv); 283 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 284 + "79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798" 285 + "483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8")); 286 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 287 } 288 }; 289 290 /* 291 * secp256r1 292 */ 293 static X9ECParametersHolder secp256r1 = new X9ECParametersHolder() 294 { 295 protected X9ECParameters createParameters() 296 { 297 byte[] S = Hex.decode("C49D360886E704936A6678E1139D26B7819F7E90"); 298 ECCurve curve = configureCurve(new SecP256R1Curve()); 299 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 300 + "6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296" 301 + "4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5")); 302 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 303 } 304 }; 305 306 /* 307 * secp384r1 308 */ 309 static X9ECParametersHolder secp384r1 = new X9ECParametersHolder() 310 { 311 protected X9ECParameters createParameters() 312 { 313 byte[] S = Hex.decode("A335926AA319A27A1D00896A6773A4827ACDAC73"); 314 ECCurve curve = configureCurve(new SecP384R1Curve()); 315 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 316 + "AA87CA22BE8B05378EB1C71EF320AD746E1D3B628BA79B9859F741E082542A385502F25DBF55296C3A545E3872760AB7" 317 + "3617DE4A96262C6F5D9E98BF9292DC29F8F41DBD289A147CE9DA3113B5F0B8C00A60B1CE1D7E819D7A431D7C90EA0E5F")); 318 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 319 } 320 }; 321 322 /* 323 * secp521r1 324 */ 325 static X9ECParametersHolder secp521r1 = new X9ECParametersHolder() 326 { 327 protected X9ECParameters createParameters() 328 { 329 byte[] S = Hex.decode("D09E8800291CB85396CC6717393284AAA0DA64BA"); 330 ECCurve curve = configureCurve(new SecP521R1Curve()); 331 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 332 + "00C6858E06B70404E9CD9E3ECB662395B4429C648139053FB521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B3C1856A429BF97E7E31C2E5BD66" 333 + "011839296A789A3BC0045C8A5FB42C7D1BD998F54449579B446817AFBD17273E662C97EE72995EF42640C550B9013FAD0761353C7086A272C24088BE94769FD16650")); 334 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 335 } 336 }; 337 338 // BEGIN Android-removed: Unsupported curves 339 /* 340 /* 341 * sect113r1 342 * 343 static X9ECParametersHolder sect113r1 = new X9ECParametersHolder() 344 { 345 protected X9ECParameters createParameters() 346 { 347 byte[] S = Hex.decode("10E723AB14D696E6768756151756FEBF8FCB49A9"); 348 ECCurve curve = configureCurve(new SecT113R1Curve()); 349 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 350 + "009D73616F35F4AB1407D73562C10F" 351 + "00A52830277958EE84D1315ED31886")); 352 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 353 } 354 }; 355 356 /* 357 * sect113r2 358 * 359 static X9ECParametersHolder sect113r2 = new X9ECParametersHolder() 360 { 361 protected X9ECParameters createParameters() 362 { 363 byte[] S = Hex.decode("10C0FB15760860DEF1EEF4D696E676875615175D"); 364 ECCurve curve = configureCurve(new SecT113R2Curve()); 365 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 366 + "01A57A6A7B26CA5EF52FCDB8164797" 367 + "00B3ADC94ED1FE674C06E695BABA1D")); 368 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 369 } 370 }; 371 372 /* 373 * sect131r1 374 * 375 static X9ECParametersHolder sect131r1 = new X9ECParametersHolder() 376 { 377 protected X9ECParameters createParameters() 378 { 379 byte[] S = Hex.decode("4D696E676875615175985BD3ADBADA21B43A97E2"); 380 ECCurve curve = configureCurve(new SecT131R1Curve()); 381 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 382 + "0081BAF91FDF9833C40F9C181343638399" 383 + "078C6E7EA38C001F73C8134B1B4EF9E150")); 384 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 385 } 386 }; 387 388 /* 389 * sect131r2 390 * 391 static X9ECParametersHolder sect131r2 = new X9ECParametersHolder() 392 { 393 protected X9ECParameters createParameters() 394 { 395 byte[] S = Hex.decode("985BD3ADBAD4D696E676875615175A21B43A97E3"); 396 ECCurve curve = configureCurve(new SecT131R2Curve()); 397 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 398 + "0356DCD8F2F95031AD652D23951BB366A8" 399 + "0648F06D867940A5366D9E265DE9EB240F")); 400 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 401 } 402 }; 403 404 /* 405 * sect163k1 406 * 407 static X9ECParametersHolder sect163k1 = new X9ECParametersHolder() 408 { 409 protected X9ECParameters createParameters() 410 { 411 byte[] S = null; 412 ECCurve curve = configureCurve(new SecT163K1Curve()); 413 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 414 + "02FE13C0537BBC11ACAA07D793DE4E6D5E5C94EEE8" 415 + "0289070FB05D38FF58321F2E800536D538CCDAA3D9")); 416 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 417 } 418 }; 419 420 /* 421 * sect163r1 422 * 423 static X9ECParametersHolder sect163r1 = new X9ECParametersHolder() 424 { 425 protected X9ECParameters createParameters() 426 { 427 byte[] S = Hex.decode("24B7B137C8A14D696E6768756151756FD0DA2E5C"); 428 ECCurve curve = configureCurve(new SecT163R1Curve()); 429 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 430 + "0369979697AB43897789566789567F787A7876A654" 431 + "00435EDB42EFAFB2989D51FEFCE3C80988F41FF883")); 432 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 433 } 434 }; 435 436 /* 437 * sect163r2 438 * 439 static X9ECParametersHolder sect163r2 = new X9ECParametersHolder() 440 { 441 protected X9ECParameters createParameters() 442 { 443 byte[] S = Hex.decode("85E25BFE5C86226CDB12016F7553F9D0E693A268"); 444 ECCurve curve = configureCurve(new SecT163R2Curve()); 445 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 446 + "03F0EBA16286A2D57EA0991168D4994637E8343E36" 447 + "00D51FBC6C71A0094FA2CDD545B11C5C0C797324F1")); 448 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 449 } 450 }; 451 452 /* 453 * sect193r1 454 * 455 static X9ECParametersHolder sect193r1 = new X9ECParametersHolder() 456 { 457 protected X9ECParameters createParameters() 458 { 459 byte[] S = Hex.decode("103FAEC74D696E676875615175777FC5B191EF30"); 460 ECCurve curve = configureCurve(new SecT193R1Curve()); 461 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 462 + "01F481BC5F0FF84A74AD6CDF6FDEF4BF6179625372D8C0C5E1" 463 + "0025E399F2903712CCF3EA9E3A1AD17FB0B3201B6AF7CE1B05")); 464 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 465 } 466 }; 467 468 /* 469 * sect193r2 470 * 471 static X9ECParametersHolder sect193r2 = new X9ECParametersHolder() 472 { 473 protected X9ECParameters createParameters() 474 { 475 byte[] S = Hex.decode("10B7B4D696E676875615175137C8A16FD0DA2211"); 476 ECCurve curve = configureCurve(new SecT193R2Curve()); 477 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 478 + "00D9B67D192E0367C803F39E1A7E82CA14A651350AAE617E8F" 479 + "01CE94335607C304AC29E7DEFBD9CA01F596F927224CDECF6C")); 480 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 481 } 482 }; 483 484 /* 485 * sect233k1 486 * 487 static X9ECParametersHolder sect233k1 = new X9ECParametersHolder() 488 { 489 protected X9ECParameters createParameters() 490 { 491 byte[] S = null; 492 ECCurve curve = configureCurve(new SecT233K1Curve()); 493 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 494 + "017232BA853A7E731AF129F22FF4149563A419C26BF50A4C9D6EEFAD6126" 495 + "01DB537DECE819B7F70F555A67C427A8CD9BF18AEB9B56E0C11056FAE6A3")); 496 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 497 } 498 }; 499 500 /* 501 * sect233r1 502 * 503 static X9ECParametersHolder sect233r1 = new X9ECParametersHolder() 504 { 505 protected X9ECParameters createParameters() 506 { 507 byte[] S = Hex.decode("74D59FF07F6B413D0EA14B344B20A2DB049B50C3"); 508 ECCurve curve = configureCurve(new SecT233R1Curve()); 509 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 510 + "00FAC9DFCBAC8313BB2139F1BB755FEF65BC391F8B36F8F8EB7371FD558B" 511 + "01006A08A41903350678E58528BEBF8A0BEFF867A7CA36716F7E01F81052")); 512 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 513 } 514 }; 515 516 /* 517 * sect239k1 518 * 519 static X9ECParametersHolder sect239k1 = new X9ECParametersHolder() 520 { 521 protected X9ECParameters createParameters() 522 { 523 byte[] S = null; 524 ECCurve curve = configureCurve(new SecT239K1Curve()); 525 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 526 + "29A0B6A887A983E9730988A68727A8B2D126C44CC2CC7B2A6555193035DC" 527 + "76310804F12E549BDB011C103089E73510ACB275FC312A5DC6B76553F0CA")); 528 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 529 } 530 }; 531 532 /* 533 * sect283k1 534 * 535 static X9ECParametersHolder sect283k1 = new X9ECParametersHolder() 536 { 537 protected X9ECParameters createParameters() 538 { 539 byte[] S = null; 540 ECCurve curve = configureCurve(new SecT283K1Curve()); 541 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 542 + "0503213F78CA44883F1A3B8162F188E553CD265F23C1567A16876913B0C2AC2458492836" 543 + "01CCDA380F1C9E318D90F95D07E5426FE87E45C0E8184698E45962364E34116177DD2259")); 544 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 545 } 546 }; 547 548 /* 549 * sect283r1 550 * 551 static X9ECParametersHolder sect283r1 = new X9ECParametersHolder() 552 { 553 protected X9ECParameters createParameters() 554 { 555 byte[] S = Hex.decode("77E2B07370EB0F832A6DD5B62DFC88CD06BB84BE"); 556 ECCurve curve = configureCurve(new SecT283R1Curve()); 557 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 558 + "05F939258DB7DD90E1934F8C70B0DFEC2EED25B8557EAC9C80E2E198F8CDBECD86B12053" 559 + "03676854FE24141CB98FE6D4B20D02B4516FF702350EDDB0826779C813F0DF45BE8112F4")); 560 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 561 } 562 }; 563 564 /* 565 * sect409k1 566 * 567 static X9ECParametersHolder sect409k1 = new X9ECParametersHolder() 568 { 569 protected X9ECParameters createParameters() 570 { 571 byte[] S = null; 572 ECCurve curve = configureCurve(new SecT409K1Curve()); 573 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 574 + "0060F05F658F49C1AD3AB1890F7184210EFD0987E307C84C27ACCFB8F9F67CC2C460189EB5AAAA62EE222EB1B35540CFE9023746" 575 + "01E369050B7C4E42ACBA1DACBF04299C3460782F918EA427E6325165E9EA10E3DA5F6C42E9C55215AA9CA27A5863EC48D8E0286B")); 576 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 577 } 578 }; 579 580 /* 581 * sect409r1 582 * 583 static X9ECParametersHolder sect409r1 = new X9ECParametersHolder() 584 { 585 protected X9ECParameters createParameters() 586 { 587 byte[] S = Hex.decode("4099B5A457F9D69F79213D094C4BCD4D4262210B"); 588 ECCurve curve = configureCurve(new SecT409R1Curve()); 589 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 590 + "015D4860D088DDB3496B0C6064756260441CDE4AF1771D4DB01FFE5B34E59703DC255A868A1180515603AEAB60794E54BB7996A7" 591 + "0061B1CFAB6BE5F32BBFA78324ED106A7636B9C5A7BD198D0158AA4F5488D08F38514F1FDF4B4F40D2181B3681C364BA0273C706")); 592 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 593 } 594 }; 595 596 /* 597 * sect571k1 598 * 599 static X9ECParametersHolder sect571k1 = new X9ECParametersHolder() 600 { 601 protected X9ECParameters createParameters() 602 { 603 byte[] S = null; 604 ECCurve curve = configureCurve(new SecT571K1Curve()); 605 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 606 + "026EB7A859923FBC82189631F8103FE4AC9CA2970012D5D46024804801841CA44370958493B205E647DA304DB4CEB08CBBD1BA39494776FB988B47174DCA88C7E2945283A01C8972" 607 + "0349DC807F4FBF374F4AEADE3BCA95314DD58CEC9F307A54FFC61EFC006D8A2C9D4979C0AC44AEA74FBEBBB9F772AEDCB620B01A7BA7AF1B320430C8591984F601CD4C143EF1C7A3")); 608 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 609 } 610 }; 611 612 /* 613 * sect571r1 614 * 615 static X9ECParametersHolder sect571r1 = new X9ECParametersHolder() 616 { 617 protected X9ECParameters createParameters() 618 { 619 byte[] S = Hex.decode("2AA058F73A0E33AB486B0F610410C53A7F132310"); 620 ECCurve curve = configureCurve(new SecT571R1Curve()); 621 X9ECPoint G = new X9ECPoint(curve, Hex.decode("04" 622 + "0303001D34B856296C16C0D40D3CD7750A93D1D2955FA80AA5F40FC8DB7B2ABDBDE53950F4C0D293CDD711A35B67FB1499AE60038614F1394ABFA3B4C850D927E1E7769C8EEC2D19" 623 + "037BF27342DA639B6DCCFFFEB73D69D78C6C27A6009CBBCA1980F8533921E8A684423E43BAB08A576291AF8F461BB2A8B3531D2F0485C19B16E2F1516E23DD3C1A4827AF1B8AC15B")); 624 return new X9ECParameters(curve, G, curve.getOrder(), curve.getCofactor(), S); 625 } 626 }; 627 */ 628 // END Android-removed: Unsupported curves 629 630 631 static final Hashtable nameToCurve = new Hashtable(); 632 static final Hashtable nameToOID = new Hashtable(); 633 static final Hashtable oidToCurve = new Hashtable(); 634 static final Hashtable oidToName = new Hashtable(); 635 static final Vector names = new Vector(); 636 637 static void defineCurve(String name, X9ECParametersHolder holder) 638 { 639 names.addElement(name); 640 name = Strings.toLowerCase(name); 641 nameToCurve.put(name, holder); 642 } 643 644 static void defineCurveWithOID(String name, ASN1ObjectIdentifier oid, X9ECParametersHolder holder) 645 { 646 names.addElement(name); 647 oidToName.put(oid, name); 648 oidToCurve.put(oid, holder); 649 name = Strings.toLowerCase(name); 650 nameToOID.put(name, oid); 651 nameToCurve.put(name, holder); 652 } 653 654 static void defineCurveAlias(String name, ASN1ObjectIdentifier oid) 655 { 656 Object curve = oidToCurve.get(oid); 657 if (curve == null) 658 { 659 throw new IllegalStateException(); 660 } 661 662 name = Strings.toLowerCase(name); 663 nameToOID.put(name, oid); 664 nameToCurve.put(name, curve); 665 } 666 667 static 668 { 669 // BEGIN Android-removed: Unsupported curves 670 /* 671 defineCurve("curve25519", curve25519); 672 673// defineCurveWithOID("secp112r1", SECObjectIdentifiers.secp112r1, secp112r1); 674// defineCurveWithOID("secp112r2", SECObjectIdentifiers.secp112r2, secp112r2); 675 defineCurveWithOID("secp128r1", SECObjectIdentifiers.secp128r1, secp128r1); 676// defineCurveWithOID("secp128r2", SECObjectIdentifiers.secp128r2, secp128r2); 677 defineCurveWithOID("secp160k1", SECObjectIdentifiers.secp160k1, secp160k1); 678 defineCurveWithOID("secp160r1", SECObjectIdentifiers.secp160r1, secp160r1); 679 defineCurveWithOID("secp160r2", SECObjectIdentifiers.secp160r2, secp160r2); 680 */ 681 // END Android-removed: Unsupported curves 682 defineCurveWithOID("secp192k1", SECObjectIdentifiers.secp192k1, secp192k1); 683 defineCurveWithOID("secp192r1", SECObjectIdentifiers.secp192r1, secp192r1); 684 defineCurveWithOID("secp224k1", SECObjectIdentifiers.secp224k1, secp224k1); 685 defineCurveWithOID("secp224r1", SECObjectIdentifiers.secp224r1, secp224r1); 686 defineCurveWithOID("secp256k1", SECObjectIdentifiers.secp256k1, secp256k1); 687 defineCurveWithOID("secp256r1", SECObjectIdentifiers.secp256r1, secp256r1); 688 defineCurveWithOID("secp384r1", SECObjectIdentifiers.secp384r1, secp384r1); 689 defineCurveWithOID("secp521r1", SECObjectIdentifiers.secp521r1, secp521r1); 690 691 // BEGIN Android-removed: Unsupported curves 692 /* 693 defineCurveWithOID("sect113r1", SECObjectIdentifiers.sect113r1, sect113r1); 694 defineCurveWithOID("sect113r2", SECObjectIdentifiers.sect113r2, sect113r2); 695 defineCurveWithOID("sect131r1", SECObjectIdentifiers.sect131r1, sect131r1); 696 defineCurveWithOID("sect131r2", SECObjectIdentifiers.sect131r2, sect131r2); 697 defineCurveWithOID("sect163k1", SECObjectIdentifiers.sect163k1, sect163k1); 698 defineCurveWithOID("sect163r1", SECObjectIdentifiers.sect163r1, sect163r1); 699 defineCurveWithOID("sect163r2", SECObjectIdentifiers.sect163r2, sect163r2); 700 defineCurveWithOID("sect193r1", SECObjectIdentifiers.sect193r1, sect193r1); 701 defineCurveWithOID("sect193r2", SECObjectIdentifiers.sect193r2, sect193r2); 702 defineCurveWithOID("sect233k1", SECObjectIdentifiers.sect233k1, sect233k1); 703 defineCurveWithOID("sect233r1", SECObjectIdentifiers.sect233r1, sect233r1); 704 defineCurveWithOID("sect239k1", SECObjectIdentifiers.sect239k1, sect239k1); 705 defineCurveWithOID("sect283k1", SECObjectIdentifiers.sect283k1, sect283k1); 706 defineCurveWithOID("sect283r1", SECObjectIdentifiers.sect283r1, sect283r1); 707 defineCurveWithOID("sect409k1", SECObjectIdentifiers.sect409k1, sect409k1); 708 defineCurveWithOID("sect409r1", SECObjectIdentifiers.sect409r1, sect409r1); 709 defineCurveWithOID("sect571k1", SECObjectIdentifiers.sect571k1, sect571k1); 710 defineCurveWithOID("sect571r1", SECObjectIdentifiers.sect571r1, sect571r1); 711 712 defineCurveAlias("B-163", SECObjectIdentifiers.sect163r2); 713 defineCurveAlias("B-233", SECObjectIdentifiers.sect233r1); 714 defineCurveAlias("B-283", SECObjectIdentifiers.sect283r1); 715 defineCurveAlias("B-409", SECObjectIdentifiers.sect409r1); 716 defineCurveAlias("B-571", SECObjectIdentifiers.sect571r1); 717 718 defineCurveAlias("K-163", SECObjectIdentifiers.sect163k1); 719 defineCurveAlias("K-233", SECObjectIdentifiers.sect233k1); 720 defineCurveAlias("K-283", SECObjectIdentifiers.sect283k1); 721 defineCurveAlias("K-409", SECObjectIdentifiers.sect409k1); 722 defineCurveAlias("K-571", SECObjectIdentifiers.sect571k1); 723 */ 724 // END Android-removed: Unsupported curves 725 726 defineCurveAlias("P-192", SECObjectIdentifiers.secp192r1); 727 defineCurveAlias("P-224", SECObjectIdentifiers.secp224r1); 728 defineCurveAlias("P-256", SECObjectIdentifiers.secp256r1); 729 defineCurveAlias("P-384", SECObjectIdentifiers.secp384r1); 730 defineCurveAlias("P-521", SECObjectIdentifiers.secp521r1); 731 } 732 733 public static X9ECParameters getByName(String name) 734 { 735 X9ECParametersHolder holder = (X9ECParametersHolder)nameToCurve.get(Strings.toLowerCase(name)); 736 return holder == null ? null : holder.getParameters(); 737 } 738 739 /** 740 * return the X9ECParameters object for the named curve represented by the passed in object 741 * identifier. Null if the curve isn't present. 742 * 743 * @param oid 744 * an object identifier representing a named curve, if present. 745 */ 746 public static X9ECParameters getByOID(ASN1ObjectIdentifier oid) 747 { 748 X9ECParametersHolder holder = (X9ECParametersHolder)oidToCurve.get(oid); 749 return holder == null ? null : holder.getParameters(); 750 } 751 752 /** 753 * return the object identifier signified by the passed in name. Null if there is no object 754 * identifier associated with name. 755 * 756 * @return the object identifier associated with name, if present. 757 */ 758 public static ASN1ObjectIdentifier getOID(String name) 759 { 760 return (ASN1ObjectIdentifier)nameToOID.get(Strings.toLowerCase(name)); 761 } 762 763 /** 764 * return the named curve name represented by the given object identifier. 765 */ 766 public static String getName(ASN1ObjectIdentifier oid) 767 { 768 return (String)oidToName.get(oid); 769 } 770 771 /** 772 * returns an enumeration containing the name strings for curves contained in this structure. 773 */ 774 public static Enumeration getNames() 775 { 776 return names.elements(); 777 } 778} 779