我认为我已经使用针对jre类型规范的EC5Util类找到了有效的解决方案。所有具有相同名称的双精度类实例都使它有些混乱，但是现在可以使用这些函数了。
public static final String deriveCurveName(org.bouncycastle.jce.spec.ECParameterSpec ecParameterSpec) throws GeneralSecurityException{ for (@SuppressWarnings("rawtypes")Enumeration names = ECNamedCurveTable.getNames(); names.hasMoreElements();){ final String name = (String)names.nextElement(); final X9ECParameters params = ECNamedCurveTable.getByName(name); if (params.getN().equals(ecParameterSpec.getN()) && params.getH().equals(ecParameterSpec.getH()) && params.getCurve().equals(ecParameterSpec.getCurve()) && params.getG().equals(ecParameterSpec.getG())){ return name; } } throw new GeneralSecurityException("Could not find name for curve");}public static final String deriveCurveName(PublicKey publicKey) throws GeneralSecurityException{ if(publicKey instanceof java.security.interfaces.ECPublicKey){ final java.security.interfaces.ECPublicKey pk = (java.security.interfaces.ECPublicKey) publicKey; final ECParameterSpec params = pk.getParams(); return deriveCurveName(EC5Util.convertSpec(params, false)); } else if(publicKey instanceof org.bouncycastle.jce.interfaces.ECPublicKey){ final org.bouncycastle.jce.interfaces.ECPublicKey pk = (org.bouncycastle.jce.interfaces.ECPublicKey) publicKey; return deriveCurveName(pk.getParameters()); } else throw new IllegalArgumentException("Can only be used with instances of ECPublicKey (either jce or bc implementation)");}public static final String deriveCurveName(PrivateKey privateKey) throws GeneralSecurityException{ if(privateKey instanceof java.security.interfaces.ECPrivateKey){ final java.security.interfaces.ECPrivateKey pk = (java.security.interfaces.ECPrivateKey) privateKey; final ECParameterSpec params = pk.getParams(); return deriveCurveName(EC5Util.convertSpec(params, false)); } else if(privateKey instanceof org.bouncycastle.jce.interfaces.ECPrivateKey){ final org.bouncycastle.jce.interfaces.ECPrivateKey pk = (org.bouncycastle.jce.interfaces.ECPrivateKey) privateKey; return deriveCurveName(pk.getParameters()); } else throw new IllegalArgumentException("Can only be used with instances of ECPrivateKey (either jce or bc implementation)");}
