ECKeyUtil.smali
.class public Lorg/spongycastle/jce/ECKeyUtil;
.super Ljava/lang/Object;
.source "ECKeyUtil.java"
# direct methods
.method public constructor <init>()V
.registers 1
.prologue
.line 30
invoke-direct {p0}, Ljava/lang/Object;-><init>()V
return-void
.end method
.method public static privateToExplicitParameters(Ljava/security/PrivateKey;Ljava/lang/String;)Ljava/security/PrivateKey;
.registers 5
.prologue
.line 136
invoke-static {p1}, Ljava/security/Security;->getProvider(Ljava/lang/String;)Ljava/security/Provider;
move-result-object v0
.line 138
if-nez v0, :cond_1b
.line 140
new-instance v0, Ljava/security/NoSuchProviderException;
new-instance v1, Ljava/lang/StringBuilder;
const-string v2, "cannot find provider: "
invoke-direct {v1, v2}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V
invoke-virtual {v1, p1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;
move-result-object v1
invoke-virtual {v1}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;
move-result-object v1
invoke-direct {v0, v1}, Ljava/security/NoSuchProviderException;-><init>(Ljava/lang/String;)V
throw v0
.line 143
:cond_1b
invoke-static {p0, v0}, Lorg/spongycastle/jce/ECKeyUtil;->privateToExplicitParameters(Ljava/security/PrivateKey;Ljava/security/Provider;)Ljava/security/PrivateKey;
move-result-object v0
return-object v0
.end method
.method public static privateToExplicitParameters(Ljava/security/PrivateKey;Ljava/security/Provider;)Ljava/security/PrivateKey;
.registers 8
.prologue
.line 161
:try_start_0
invoke-interface {p0}, Ljava/security/PrivateKey;->getEncoded()[B
move-result-object v0
invoke-static {v0}, Lorg/spongycastle/asn1/ASN1Primitive;->fromByteArray([B)Lorg/spongycastle/asn1/ASN1Primitive;
move-result-object v0
invoke-static {v0}, Lorg/spongycastle/asn1/pkcs/PrivateKeyInfo;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/pkcs/PrivateKeyInfo;
move-result-object v1
.line 163
invoke-virtual {v1}, Lorg/spongycastle/asn1/pkcs/PrivateKeyInfo;->getAlgorithmId()Lorg/spongycastle/asn1/x509/AlgorithmIdentifier;
move-result-object v0
invoke-virtual {v0}, Lorg/spongycastle/asn1/x509/AlgorithmIdentifier;->getAlgorithm()Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
move-result-object v0
sget-object v2, Lorg/spongycastle/asn1/cryptopro/CryptoProObjectIdentifiers;->gostR3410_2001:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
invoke-virtual {v0, v2}, Lorg/spongycastle/asn1/ASN1ObjectIdentifier;->equals(Ljava/lang/Object;)Z
move-result v0
if-eqz v0, :cond_26
.line 165
new-instance v0, Ljava/io/UnsupportedEncodingException;
const-string v1, "cannot convert GOST key to explicit parameters."
invoke-direct {v0, v1}, Ljava/io/UnsupportedEncodingException;-><init>(Ljava/lang/String;)V
throw v0
:try_end_24
.catch Ljava/lang/IllegalArgumentException; {:try_start_0 .. :try_end_24} :catch_24
.catch Ljava/security/NoSuchAlgorithmException; {:try_start_0 .. :try_end_24} :catch_b8
.catch Ljava/lang/Exception; {:try_start_0 .. :try_end_24} :catch_ba
.line 200
:catch_24
move-exception v0
throw v0
.line 169
:cond_26
:try_start_26
invoke-virtual {v1}, Lorg/spongycastle/asn1/pkcs/PrivateKeyInfo;->getAlgorithmId()Lorg/spongycastle/asn1/x509/AlgorithmIdentifier;
move-result-object v0
invoke-virtual {v0}, Lorg/spongycastle/asn1/x509/AlgorithmIdentifier;->getParameters()Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v0
invoke-static {v0}, Lorg/spongycastle/asn1/x9/X962Parameters;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/x9/X962Parameters;
move-result-object v0
.line 172
invoke-virtual {v0}, Lorg/spongycastle/asn1/x9/X962Parameters;->isNamedCurve()Z
move-result v2
if-eqz v2, :cond_84
.line 174
invoke-virtual {v0}, Lorg/spongycastle/asn1/x9/X962Parameters;->getParameters()Lorg/spongycastle/asn1/ASN1Primitive;
move-result-object v0
invoke-static {v0}, Lorg/spongycastle/asn1/ASN1ObjectIdentifier;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
move-result-object v0
.line 176
invoke-static {v0}, Lorg/spongycastle/jcajce/provider/asymmetric/util/ECUtil;->getNamedCurveByOid(Lorg/spongycastle/asn1/ASN1ObjectIdentifier;)Lorg/spongycastle/asn1/x9/X9ECParameters;
move-result-object v2
.line 178
new-instance v0, Lorg/spongycastle/asn1/x9/X9ECParameters;
invoke-virtual {v2}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getCurve()Lorg/spongycastle/math/ec/ECCurve;
move-result-object v3
invoke-virtual {v2}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getG()Lorg/spongycastle/math/ec/ECPoint;
move-result-object v4
invoke-virtual {v2}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getN()Ljava/math/BigInteger;
move-result-object v5
invoke-virtual {v2}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getH()Ljava/math/BigInteger;
move-result-object v2
invoke-direct {v0, v3, v4, v5, v2}, Lorg/spongycastle/asn1/x9/X9ECParameters;-><init>(Lorg/spongycastle/math/ec/ECCurve;Lorg/spongycastle/math/ec/ECPoint;Ljava/math/BigInteger;Ljava/math/BigInteger;)V
.line 189
:goto_59
new-instance v2, Lorg/spongycastle/asn1/x9/X962Parameters;
invoke-direct {v2, v0}, Lorg/spongycastle/asn1/x9/X962Parameters;-><init>(Lorg/spongycastle/asn1/x9/X9ECParameters;)V
.line 191
new-instance v0, Lorg/spongycastle/asn1/pkcs/PrivateKeyInfo;
new-instance v3, Lorg/spongycastle/asn1/x509/AlgorithmIdentifier;
sget-object v4, Lorg/spongycastle/asn1/x9/X9ObjectIdentifiers;->id_ecPublicKey:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
invoke-direct {v3, v4, v2}, Lorg/spongycastle/asn1/x509/AlgorithmIdentifier;-><init>(Lorg/spongycastle/asn1/ASN1ObjectIdentifier;Lorg/spongycastle/asn1/ASN1Encodable;)V
invoke-virtual {v1}, Lorg/spongycastle/asn1/pkcs/PrivateKeyInfo;->parsePrivateKey()Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v1
invoke-direct {v0, v3, v1}, Lorg/spongycastle/asn1/pkcs/PrivateKeyInfo;-><init>(Lorg/spongycastle/asn1/x509/AlgorithmIdentifier;Lorg/spongycastle/asn1/ASN1Encodable;)V
.line 193
invoke-interface {p0}, Ljava/security/PrivateKey;->getAlgorithm()Ljava/lang/String;
move-result-object v1
invoke-static {v1, p1}, Ljava/security/KeyFactory;->getInstance(Ljava/lang/String;Ljava/security/Provider;)Ljava/security/KeyFactory;
move-result-object v1
.line 195
new-instance v2, Ljava/security/spec/PKCS8EncodedKeySpec;
invoke-virtual {v0}, Lorg/spongycastle/asn1/pkcs/PrivateKeyInfo;->getEncoded()[B
move-result-object v0
invoke-direct {v2, v0}, Ljava/security/spec/PKCS8EncodedKeySpec;-><init>([B)V
invoke-virtual {v1, v2}, Ljava/security/KeyFactory;->generatePrivate(Ljava/security/spec/KeySpec;)Ljava/security/PrivateKey;
move-result-object p0
:cond_83
return-object p0
.line 180
:cond_84
invoke-virtual {v0}, Lorg/spongycastle/asn1/x9/X962Parameters;->isImplicitlyCA()Z
move-result v0
if-eqz v0, :cond_83
.line 182
new-instance v0, Lorg/spongycastle/asn1/x9/X9ECParameters;
sget-object v2, Lorg/spongycastle/jce/provider/BouncyCastleProvider;->CONFIGURATION:Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;
invoke-interface {v2}, Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;->getEcImplicitlyCa()Lorg/spongycastle/jce/spec/ECParameterSpec;
move-result-object v2
invoke-virtual {v2}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getCurve()Lorg/spongycastle/math/ec/ECCurve;
move-result-object v2
sget-object v3, Lorg/spongycastle/jce/provider/BouncyCastleProvider;->CONFIGURATION:Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;
invoke-interface {v3}, Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;->getEcImplicitlyCa()Lorg/spongycastle/jce/spec/ECParameterSpec;
move-result-object v3
invoke-virtual {v3}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getG()Lorg/spongycastle/math/ec/ECPoint;
move-result-object v3
sget-object v4, Lorg/spongycastle/jce/provider/BouncyCastleProvider;->CONFIGURATION:Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;
invoke-interface {v4}, Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;->getEcImplicitlyCa()Lorg/spongycastle/jce/spec/ECParameterSpec;
move-result-object v4
invoke-virtual {v4}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getN()Ljava/math/BigInteger;
move-result-object v4
sget-object v5, Lorg/spongycastle/jce/provider/BouncyCastleProvider;->CONFIGURATION:Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;
invoke-interface {v5}, Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;->getEcImplicitlyCa()Lorg/spongycastle/jce/spec/ECParameterSpec;
move-result-object v5
invoke-virtual {v5}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getH()Ljava/math/BigInteger;
move-result-object v5
invoke-direct {v0, v2, v3, v4, v5}, Lorg/spongycastle/asn1/x9/X9ECParameters;-><init>(Lorg/spongycastle/math/ec/ECCurve;Lorg/spongycastle/math/ec/ECPoint;Ljava/math/BigInteger;Ljava/math/BigInteger;)V
:try_end_b7
.catch Ljava/lang/IllegalArgumentException; {:try_start_26 .. :try_end_b7} :catch_24
.catch Ljava/security/NoSuchAlgorithmException; {:try_start_26 .. :try_end_b7} :catch_b8
.catch Ljava/lang/Exception; {:try_start_26 .. :try_end_b7} :catch_ba
goto :goto_59
.line 204
:catch_b8
move-exception v0
throw v0
.line 206
:catch_ba
move-exception v0
.line 208
new-instance v1, Lorg/spongycastle/jce/ECKeyUtil$UnexpectedException;
invoke-direct {v1, v0}, Lorg/spongycastle/jce/ECKeyUtil$UnexpectedException;-><init>(Ljava/lang/Throwable;)V
throw v1
.end method
.method public static publicToExplicitParameters(Ljava/security/PublicKey;Ljava/lang/String;)Ljava/security/PublicKey;
.registers 5
.prologue
.line 46
invoke-static {p1}, Ljava/security/Security;->getProvider(Ljava/lang/String;)Ljava/security/Provider;
move-result-object v0
.line 48
if-nez v0, :cond_1b
.line 50
new-instance v0, Ljava/security/NoSuchProviderException;
new-instance v1, Ljava/lang/StringBuilder;
const-string v2, "cannot find provider: "
invoke-direct {v1, v2}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V
invoke-virtual {v1, p1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;
move-result-object v1
invoke-virtual {v1}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;
move-result-object v1
invoke-direct {v0, v1}, Ljava/security/NoSuchProviderException;-><init>(Ljava/lang/String;)V
throw v0
.line 53
:cond_1b
invoke-static {p0, v0}, Lorg/spongycastle/jce/ECKeyUtil;->publicToExplicitParameters(Ljava/security/PublicKey;Ljava/security/Provider;)Ljava/security/PublicKey;
move-result-object v0
return-object v0
.end method
.method public static publicToExplicitParameters(Ljava/security/PublicKey;Ljava/security/Provider;)Ljava/security/PublicKey;
.registers 8
.prologue
.line 71
:try_start_0
invoke-interface {p0}, Ljava/security/PublicKey;->getEncoded()[B
move-result-object v0
invoke-static {v0}, Lorg/spongycastle/asn1/ASN1Primitive;->fromByteArray([B)Lorg/spongycastle/asn1/ASN1Primitive;
move-result-object v0
invoke-static {v0}, Lorg/spongycastle/asn1/x509/SubjectPublicKeyInfo;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/x509/SubjectPublicKeyInfo;
move-result-object v1
.line 73
invoke-virtual {v1}, Lorg/spongycastle/asn1/x509/SubjectPublicKeyInfo;->getAlgorithmId()Lorg/spongycastle/asn1/x509/AlgorithmIdentifier;
move-result-object v0
invoke-virtual {v0}, Lorg/spongycastle/asn1/x509/AlgorithmIdentifier;->getAlgorithm()Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
move-result-object v0
sget-object v2, Lorg/spongycastle/asn1/cryptopro/CryptoProObjectIdentifiers;->gostR3410_2001:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
invoke-virtual {v0, v2}, Lorg/spongycastle/asn1/ASN1ObjectIdentifier;->equals(Ljava/lang/Object;)Z
move-result v0
if-eqz v0, :cond_26
.line 75
new-instance v0, Ljava/lang/IllegalArgumentException;
const-string v1, "cannot convert GOST key to explicit parameters."
invoke-direct {v0, v1}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V
throw v0
:try_end_24
.catch Ljava/lang/IllegalArgumentException; {:try_start_0 .. :try_end_24} :catch_24
.catch Ljava/security/NoSuchAlgorithmException; {:try_start_0 .. :try_end_24} :catch_bc
.catch Ljava/lang/Exception; {:try_start_0 .. :try_end_24} :catch_be
.line 110
:catch_24
move-exception v0
throw v0
.line 79
:cond_26
:try_start_26
invoke-virtual {v1}, Lorg/spongycastle/asn1/x509/SubjectPublicKeyInfo;->getAlgorithmId()Lorg/spongycastle/asn1/x509/AlgorithmIdentifier;
move-result-object v0
invoke-virtual {v0}, Lorg/spongycastle/asn1/x509/AlgorithmIdentifier;->getParameters()Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v0
invoke-static {v0}, Lorg/spongycastle/asn1/x9/X962Parameters;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/x9/X962Parameters;
move-result-object v0
.line 82
invoke-virtual {v0}, Lorg/spongycastle/asn1/x9/X962Parameters;->isNamedCurve()Z
move-result v2
if-eqz v2, :cond_88
.line 84
invoke-virtual {v0}, Lorg/spongycastle/asn1/x9/X962Parameters;->getParameters()Lorg/spongycastle/asn1/ASN1Primitive;
move-result-object v0
invoke-static {v0}, Lorg/spongycastle/asn1/ASN1ObjectIdentifier;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
move-result-object v0
.line 86
invoke-static {v0}, Lorg/spongycastle/jcajce/provider/asymmetric/util/ECUtil;->getNamedCurveByOid(Lorg/spongycastle/asn1/ASN1ObjectIdentifier;)Lorg/spongycastle/asn1/x9/X9ECParameters;
move-result-object v2
.line 88
new-instance v0, Lorg/spongycastle/asn1/x9/X9ECParameters;
invoke-virtual {v2}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getCurve()Lorg/spongycastle/math/ec/ECCurve;
move-result-object v3
invoke-virtual {v2}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getG()Lorg/spongycastle/math/ec/ECPoint;
move-result-object v4
invoke-virtual {v2}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getN()Ljava/math/BigInteger;
move-result-object v5
invoke-virtual {v2}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getH()Ljava/math/BigInteger;
move-result-object v2
invoke-direct {v0, v3, v4, v5, v2}, Lorg/spongycastle/asn1/x9/X9ECParameters;-><init>(Lorg/spongycastle/math/ec/ECCurve;Lorg/spongycastle/math/ec/ECPoint;Ljava/math/BigInteger;Ljava/math/BigInteger;)V
.line 99
:goto_59
new-instance v2, Lorg/spongycastle/asn1/x9/X962Parameters;
invoke-direct {v2, v0}, Lorg/spongycastle/asn1/x9/X962Parameters;-><init>(Lorg/spongycastle/asn1/x9/X9ECParameters;)V
.line 101
new-instance v0, Lorg/spongycastle/asn1/x509/SubjectPublicKeyInfo;
new-instance v3, Lorg/spongycastle/asn1/x509/AlgorithmIdentifier;
sget-object v4, Lorg/spongycastle/asn1/x9/X9ObjectIdentifiers;->id_ecPublicKey:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
invoke-direct {v3, v4, v2}, Lorg/spongycastle/asn1/x509/AlgorithmIdentifier;-><init>(Lorg/spongycastle/asn1/ASN1ObjectIdentifier;Lorg/spongycastle/asn1/ASN1Encodable;)V
invoke-virtual {v1}, Lorg/spongycastle/asn1/x509/SubjectPublicKeyInfo;->getPublicKeyData()Lorg/spongycastle/asn1/DERBitString;
move-result-object v1
invoke-virtual {v1}, Lorg/spongycastle/asn1/DERBitString;->getBytes()[B
move-result-object v1
invoke-direct {v0, v3, v1}, Lorg/spongycastle/asn1/x509/SubjectPublicKeyInfo;-><init>(Lorg/spongycastle/asn1/x509/AlgorithmIdentifier;[B)V
.line 103
invoke-interface {p0}, Ljava/security/PublicKey;->getAlgorithm()Ljava/lang/String;
move-result-object v1
invoke-static {v1, p1}, Ljava/security/KeyFactory;->getInstance(Ljava/lang/String;Ljava/security/Provider;)Ljava/security/KeyFactory;
move-result-object v1
.line 105
new-instance v2, Ljava/security/spec/X509EncodedKeySpec;
invoke-virtual {v0}, Lorg/spongycastle/asn1/x509/SubjectPublicKeyInfo;->getEncoded()[B
move-result-object v0
invoke-direct {v2, v0}, Ljava/security/spec/X509EncodedKeySpec;-><init>([B)V
invoke-virtual {v1, v2}, Ljava/security/KeyFactory;->generatePublic(Ljava/security/spec/KeySpec;)Ljava/security/PublicKey;
move-result-object p0
:cond_87
return-object p0
.line 90
:cond_88
invoke-virtual {v0}, Lorg/spongycastle/asn1/x9/X962Parameters;->isImplicitlyCA()Z
move-result v0
if-eqz v0, :cond_87
.line 92
new-instance v0, Lorg/spongycastle/asn1/x9/X9ECParameters;
sget-object v2, Lorg/spongycastle/jce/provider/BouncyCastleProvider;->CONFIGURATION:Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;
invoke-interface {v2}, Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;->getEcImplicitlyCa()Lorg/spongycastle/jce/spec/ECParameterSpec;
move-result-object v2
invoke-virtual {v2}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getCurve()Lorg/spongycastle/math/ec/ECCurve;
move-result-object v2
sget-object v3, Lorg/spongycastle/jce/provider/BouncyCastleProvider;->CONFIGURATION:Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;
invoke-interface {v3}, Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;->getEcImplicitlyCa()Lorg/spongycastle/jce/spec/ECParameterSpec;
move-result-object v3
invoke-virtual {v3}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getG()Lorg/spongycastle/math/ec/ECPoint;
move-result-object v3
sget-object v4, Lorg/spongycastle/jce/provider/BouncyCastleProvider;->CONFIGURATION:Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;
invoke-interface {v4}, Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;->getEcImplicitlyCa()Lorg/spongycastle/jce/spec/ECParameterSpec;
move-result-object v4
invoke-virtual {v4}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getN()Ljava/math/BigInteger;
move-result-object v4
sget-object v5, Lorg/spongycastle/jce/provider/BouncyCastleProvider;->CONFIGURATION:Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;
invoke-interface {v5}, Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;->getEcImplicitlyCa()Lorg/spongycastle/jce/spec/ECParameterSpec;
move-result-object v5
invoke-virtual {v5}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getH()Ljava/math/BigInteger;
move-result-object v5
invoke-direct {v0, v2, v3, v4, v5}, Lorg/spongycastle/asn1/x9/X9ECParameters;-><init>(Lorg/spongycastle/math/ec/ECCurve;Lorg/spongycastle/math/ec/ECPoint;Ljava/math/BigInteger;Ljava/math/BigInteger;)V
:try_end_bb
.catch Ljava/lang/IllegalArgumentException; {:try_start_26 .. :try_end_bb} :catch_24
.catch Ljava/security/NoSuchAlgorithmException; {:try_start_26 .. :try_end_bb} :catch_bc
.catch Ljava/lang/Exception; {:try_start_26 .. :try_end_bb} :catch_be
goto :goto_59
.line 114
:catch_bc
move-exception v0
throw v0
.line 116
:catch_be
move-exception v0
.line 118
new-instance v1, Lorg/spongycastle/jce/ECKeyUtil$UnexpectedException;
invoke-direct {v1, v0}, Lorg/spongycastle/jce/ECKeyUtil$UnexpectedException;-><init>(Ljava/lang/Throwable;)V
throw v1
.end method