RSAUtil.smali

.class public Lorg/spongycastle/jcajce/provider/asymmetric/rsa/RSAUtil;
.super Ljava/lang/Object;
.source "RSAUtil.java"


# static fields
.field public static final rsaOids:[Lorg/spongycastle/asn1/ASN1ObjectIdentifier;


# direct methods
.method static constructor <clinit>()V
    .registers 3

    .prologue
    .line 19
    const/4 v0, 0x4

    new-array v0, v0, [Lorg/spongycastle/asn1/ASN1ObjectIdentifier;

    const/4 v1, 0x0

    sget-object v2, Lorg/spongycastle/asn1/pkcs/PKCSObjectIdentifiers;->rsaEncryption:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;

    aput-object v2, v0, v1

    const/4 v1, 0x1

    sget-object v2, Lorg/spongycastle/asn1/x509/X509ObjectIdentifiers;->id_ea_rsa:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;

    aput-object v2, v0, v1

    const/4 v1, 0x2

    sget-object v2, Lorg/spongycastle/asn1/pkcs/PKCSObjectIdentifiers;->id_RSAES_OAEP:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;

    aput-object v2, v0, v1

    const/4 v1, 0x3

    sget-object v2, Lorg/spongycastle/asn1/pkcs/PKCSObjectIdentifiers;->id_RSASSA_PSS:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;

    aput-object v2, v0, v1

    sput-object v0, Lorg/spongycastle/jcajce/provider/asymmetric/rsa/RSAUtil;->rsaOids:[Lorg/spongycastle/asn1/ASN1ObjectIdentifier;

    return-void
.end method

.method public constructor <init>()V
    .registers 1

    .prologue
    .line 17
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method static generatePrivateKeyParameter(Ljava/security/interfaces/RSAPrivateKey;)Lorg/spongycastle/crypto/params/RSAKeyParameters;
    .registers 10

    .prologue
    .line 51
    instance-of v0, p0, Ljava/security/interfaces/RSAPrivateCrtKey;

    if-eqz v0, :cond_2c

    .line 53
    check-cast p0, Ljava/security/interfaces/RSAPrivateCrtKey;

    .line 55
    new-instance v0, Lorg/spongycastle/crypto/params/RSAPrivateCrtKeyParameters;

    invoke-interface {p0}, Ljava/security/interfaces/RSAPrivateCrtKey;->getModulus()Ljava/math/BigInteger;

    move-result-object v1

    .line 56
    invoke-interface {p0}, Ljava/security/interfaces/RSAPrivateCrtKey;->getPublicExponent()Ljava/math/BigInteger;

    move-result-object v2

    invoke-interface {p0}, Ljava/security/interfaces/RSAPrivateCrtKey;->getPrivateExponent()Ljava/math/BigInteger;

    move-result-object v3

    .line 57
    invoke-interface {p0}, Ljava/security/interfaces/RSAPrivateCrtKey;->getPrimeP()Ljava/math/BigInteger;

    move-result-object v4

    invoke-interface {p0}, Ljava/security/interfaces/RSAPrivateCrtKey;->getPrimeQ()Ljava/math/BigInteger;

    move-result-object v5

    invoke-interface {p0}, Ljava/security/interfaces/RSAPrivateCrtKey;->getPrimeExponentP()Ljava/math/BigInteger;

    move-result-object v6

    invoke-interface {p0}, Ljava/security/interfaces/RSAPrivateCrtKey;->getPrimeExponentQ()Ljava/math/BigInteger;

    move-result-object v7

    invoke-interface {p0}, Ljava/security/interfaces/RSAPrivateCrtKey;->getCrtCoefficient()Ljava/math/BigInteger;

    move-result-object v8

    invoke-direct/range {v0 .. v8}, Lorg/spongycastle/crypto/params/RSAPrivateCrtKeyParameters;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;Ljava/math/BigInteger;Ljava/math/BigInteger;Ljava/math/BigInteger;Ljava/math/BigInteger;Ljava/math/BigInteger;Ljava/math/BigInteger;)V

    .line 63
    :goto_2b
    return-object v0

    :cond_2c
    new-instance v0, Lorg/spongycastle/crypto/params/RSAKeyParameters;

    const/4 v1, 0x1

    invoke-interface {p0}, Ljava/security/interfaces/RSAPrivateKey;->getModulus()Ljava/math/BigInteger;

    move-result-object v2

    invoke-interface {p0}, Ljava/security/interfaces/RSAPrivateKey;->getPrivateExponent()Ljava/math/BigInteger;

    move-result-object v3

    invoke-direct {v0, v1, v2, v3}, Lorg/spongycastle/crypto/params/RSAKeyParameters;-><init>(ZLjava/math/BigInteger;Ljava/math/BigInteger;)V

    goto :goto_2b
.end method

.method static generatePublicKeyParameter(Ljava/security/interfaces/RSAPublicKey;)Lorg/spongycastle/crypto/params/RSAKeyParameters;
    .registers 5

    .prologue
    .line 44
    new-instance v0, Lorg/spongycastle/crypto/params/RSAKeyParameters;

    const/4 v1, 0x0

    invoke-interface {p0}, Ljava/security/interfaces/RSAPublicKey;->getModulus()Ljava/math/BigInteger;

    move-result-object v2

    invoke-interface {p0}, Ljava/security/interfaces/RSAPublicKey;->getPublicExponent()Ljava/math/BigInteger;

    move-result-object v3

    invoke-direct {v0, v1, v2, v3}, Lorg/spongycastle/crypto/params/RSAKeyParameters;-><init>(ZLjava/math/BigInteger;Ljava/math/BigInteger;)V

    return-object v0
.end method

.method public static isRsaOid(Lorg/spongycastle/asn1/ASN1ObjectIdentifier;)Z
    .registers 4

    .prologue
    const/4 v1, 0x0

    .line 30
    move v0, v1

    :goto_2
    sget-object v2, Lorg/spongycastle/jcajce/provider/asymmetric/rsa/RSAUtil;->rsaOids:[Lorg/spongycastle/asn1/ASN1ObjectIdentifier;

    array-length v2, v2

    if-eq v0, v2, :cond_12

    .line 32
    sget-object v2, Lorg/spongycastle/jcajce/provider/asymmetric/rsa/RSAUtil;->rsaOids:[Lorg/spongycastle/asn1/ASN1ObjectIdentifier;

    aget-object v2, v2, v0

    invoke-virtual {p0, v2}, Lorg/spongycastle/asn1/ASN1ObjectIdentifier;->equals(Ljava/lang/Object;)Z

    move-result v2

    if-eqz v2, :cond_13

    .line 34
    const/4 v1, 0x1

    .line 38
    :cond_12
    return v1

    .line 30
    :cond_13
    add-int/lit8 v0, v0, 0x1

    goto :goto_2
.end method