diff options
Diffstat (limited to 'core/src/main/java/org/bouncycastle/asn1/cryptopro/GOST3410NamedParameters.java')
-rw-r--r-- | core/src/main/java/org/bouncycastle/asn1/cryptopro/GOST3410NamedParameters.java | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/core/src/main/java/org/bouncycastle/asn1/cryptopro/GOST3410NamedParameters.java b/core/src/main/java/org/bouncycastle/asn1/cryptopro/GOST3410NamedParameters.java new file mode 100644 index 00000000..6c398b5d --- /dev/null +++ b/core/src/main/java/org/bouncycastle/asn1/cryptopro/GOST3410NamedParameters.java @@ -0,0 +1,116 @@ +package org.bouncycastle.asn1.cryptopro; + +import java.math.BigInteger; +import java.util.Enumeration; +import java.util.Hashtable; + +import org.bouncycastle.asn1.ASN1ObjectIdentifier; + +/** + * table of the available named parameters for GOST 3410-94. + */ +public class GOST3410NamedParameters +{ + static final Hashtable objIds = new Hashtable(); + static final Hashtable params = new Hashtable(); + static final Hashtable names = new Hashtable(); + + static private GOST3410ParamSetParameters cryptoProA = new GOST3410ParamSetParameters( + 1024, + new BigInteger("127021248288932417465907042777176443525787653508916535812817507265705031260985098497423188333483401180925999995120988934130659205614996724254121049274349357074920312769561451689224110579311248812610229678534638401693520013288995000362260684222750813532307004517341633685004541062586971416883686778842537820383"), + new BigInteger("68363196144955700784444165611827252895102170888761442055095051287550314083023"), + new BigInteger("100997906755055304772081815535925224869841082572053457874823515875577147990529272777244152852699298796483356699682842027972896052747173175480590485607134746852141928680912561502802222185647539190902656116367847270145019066794290930185446216399730872221732889830323194097355403213400972588322876850946740663962") +// validationAlgorithm { +// algorithm +// id-GostR3410-94-bBis, +// parameters +// GostR3410-94-ValidationBisParameters: { +// x0 1376285941, +// c 3996757427 +// } +// } + + ); + + static private GOST3410ParamSetParameters cryptoProB = new GOST3410ParamSetParameters( + 1024, + new BigInteger("139454871199115825601409655107690713107041707059928031797758001454375765357722984094124368522288239833039114681648076688236921220737322672160740747771700911134550432053804647694904686120113087816240740184800477047157336662926249423571248823968542221753660143391485680840520336859458494803187341288580489525163"), + new BigInteger("79885141663410976897627118935756323747307951916507639758300472692338873533959"), + new BigInteger("42941826148615804143873447737955502392672345968607143066798112994089471231420027060385216699563848719957657284814898909770759462613437669456364882730370838934791080835932647976778601915343474400961034231316672578686920482194932878633360203384797092684342247621055760235016132614780652761028509445403338652341") +// validationAlgorithm { +// algorithm +// id-GostR3410-94-bBis, +// parameters +// GostR3410-94-ValidationBisParameters: { +// x0 1536654555, +// c 1855361757, +// d 14408629386140014567655 +//4902939282056547857802241461782996702017713059974755104394739915140 +//6115284791024439062735788342744854120601660303926203867703556828005 +//8957203818114895398976594425537561271800850306 +// } +// } +//} + ); + + static private GOST3410ParamSetParameters cryptoProXchA = new GOST3410ParamSetParameters( + 1024, + new BigInteger("142011741597563481196368286022318089743276138395243738762872573441927459393512718973631166078467600360848946623567625795282774719212241929071046134208380636394084512691828894000571524625445295769349356752728956831541775441763139384457191755096847107846595662547942312293338483924514339614727760681880609734239"), + new BigInteger("91771529896554605945588149018382750217296858393520724172743325725474374979801"), + new BigInteger("133531813272720673433859519948319001217942375967847486899482359599369642528734712461590403327731821410328012529253871914788598993103310567744136196364803064721377826656898686468463277710150809401182608770201615324990468332931294920912776241137878030224355746606283971659376426832674269780880061631528163475887") + ); + + static + { + params.put(CryptoProObjectIdentifiers.gostR3410_94_CryptoPro_A, cryptoProA); + params.put(CryptoProObjectIdentifiers.gostR3410_94_CryptoPro_B, cryptoProB); +// params.put(CryptoProObjectIdentifiers.gostR3410_94_CryptoPro_C, cryptoProC); +// params.put(CryptoProObjectIdentifiers.gostR3410_94_CryptoPro_D, cryptoProD); + params.put(CryptoProObjectIdentifiers.gostR3410_94_CryptoPro_XchA, cryptoProXchA); +// params.put(CryptoProObjectIdentifiers.gostR3410_94_CryptoPro_XchB, cryptoProXchA); +// params.put(CryptoProObjectIdentifiers.gostR3410_94_CryptoPro_XchC, cryptoProXchA); + + objIds.put("GostR3410-94-CryptoPro-A", CryptoProObjectIdentifiers.gostR3410_94_CryptoPro_A); + objIds.put("GostR3410-94-CryptoPro-B", CryptoProObjectIdentifiers.gostR3410_94_CryptoPro_B); + objIds.put("GostR3410-94-CryptoPro-XchA", CryptoProObjectIdentifiers.gostR3410_94_CryptoPro_XchA); + } + + /** + * return the GOST3410ParamSetParameters object for the given OID, null if it + * isn't present. + * + * @param oid an object identifier representing a named parameters, if present. + */ + public static GOST3410ParamSetParameters getByOID( + ASN1ObjectIdentifier oid) + { + return (GOST3410ParamSetParameters)params.get(oid); + } + + /** + * returns an enumeration containing the name strings for parameters + * contained in this structure. + */ + public static Enumeration getNames() + { + return objIds.keys(); + } + + public static GOST3410ParamSetParameters getByName( + String name) + { + ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier)objIds.get(name); + + if (oid != null) + { + return (GOST3410ParamSetParameters)params.get(oid); + } + + return null; + } + + public static ASN1ObjectIdentifier getOID(String name) + { + return (ASN1ObjectIdentifier)objIds.get(name); + } +} |