Pkce.smali

.class public final Lcom/amazonaws/mobileconnectors/cognitoauth/util/Pkce;
.super Ljava/lang/Object;
.source "Pkce.java"


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

    .line 1
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method public static final encodeBase64(Ljava/lang/String;)Ljava/lang/String;
    .registers 2

    if-nez p0, :cond_4

    const/4 p0, 0x0

    return-object p0

    :cond_4
    const-string v0, "ISO-8859-1"

    .line 1
    invoke-static {v0}, Ljava/nio/charset/Charset;->forName(Ljava/lang/String;)Ljava/nio/charset/Charset;

    move-result-object v0

    invoke-virtual {p0, v0}, Ljava/lang/String;->getBytes(Ljava/nio/charset/Charset;)[B

    move-result-object p0

    const/4 v0, 0x3

    .line 2
    invoke-static {p0, v0}, Landroid/util/Base64;->encodeToString([BI)Ljava/lang/String;

    move-result-object p0

    return-object p0
.end method

.method public static final generateHash(Ljava/lang/String;)Ljava/lang/String;
    .registers 4
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    :try_start_0
    const-string v0, "US-ASCII"

    .line 1
    invoke-virtual {p0, v0}, Ljava/lang/String;->getBytes(Ljava/lang/String;)[B

    move-result-object p0

    const-string v0, "SHA-256"

    .line 2
    invoke-static {v0}, Ljava/security/MessageDigest;->getInstance(Ljava/lang/String;)Ljava/security/MessageDigest;

    move-result-object v0

    const/4 v1, 0x0

    .line 3
    array-length v2, p0

    invoke-virtual {v0, p0, v1, v2}, Ljava/security/MessageDigest;->update([BII)V

    .line 4
    invoke-virtual {v0}, Ljava/security/MessageDigest;->digest()[B

    move-result-object p0

    const/16 v0, 0xb

    .line 5
    invoke-static {p0, v0}, Landroid/util/Base64;->encodeToString([BI)Ljava/lang/String;

    move-result-object p0
    :try_end_1b
    .catch Ljava/lang/Exception; {:try_start_0 .. :try_end_1b} :catch_1c

    return-object p0

    :catch_1c
    move-exception p0

    .line 6
    throw p0
.end method

.method public static final generateRandom()Ljava/lang/String;
    .registers 2

    .line 1
    new-instance v0, Ljava/security/SecureRandom;

    invoke-direct {v0}, Ljava/security/SecureRandom;-><init>()V

    const/16 v1, 0x20

    .line 2
    new-array v1, v1, [B

    .line 3
    invoke-virtual {v0, v1}, Ljava/security/SecureRandom;->nextBytes([B)V

    const/16 v0, 0xb

    .line 4
    invoke-static {v1, v0}, Landroid/util/Base64;->encodeToString([BI)Ljava/lang/String;

    move-result-object v0

    return-object v0
.end method