Bump bcastle to 1.79, add bcutil.

gradle/libs.versions.toml

@@ -1,6 +1,7 @@
 [versions]
 # Library versions
-bcastle = "1.77"
+bcastle = "1.79"
+bcutil = "1.79"
 coroutines = "1.6.4"
 google-gson = "2.8.9"
 hoplite = "2.7.0"
@@ -23,6 +24,8 @@ detekt = "1.22.0"
 
 [libraries]
 bcastle = { module = "org.bouncycastle:bcprov-jdk18on", version.ref = "bcastle" }
+# EdECObjectIdentifiers is an internal class in bcastle, so we need to import bcutil.
+bcutil = { module = "org.bouncycastle:bcutil-jdk18on", version.ref = "bcutil" }
 coroutines-core = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-core", version.ref = "coroutines" }
 coroutines-test = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-test", version.ref = "coroutines" }
 google-gson = { module = "com.google.code.gson:gson", version.ref = "google-gson" }

wallet-sdk/build.gradle.kts

@@ -28,13 +28,7 @@ configurations {
 
 dependencies {
   api(libs.coroutines.core)
-  api(libs.java.stellar.sdk) {
-    // The Java SDK uses version bcprov-jdk18on 1.78.1, but I think there are some issues with this version,
-    // so we had to exclude this dependency; the problem also appears in 1.79.
-    // https://github.com/bcgit/bc-java/issues/1621
-    // Maybe I should downgrade the version to 1.77 in the final release.
-    exclude(group = "org.bouncycastle", module = "bcprov-jdk18on")
-  }
+  api(libs.java.stellar.sdk)
   api(libs.kotlin.datetime)
   api(libs.bundles.ktor.client)
   implementation(libs.kotlin.serialization.json)
@@ -43,6 +37,7 @@ dependencies {
   implementation(libs.toml4j)
   implementation(libs.jjwt)
   implementation(libs.bcastle)
+  implementation(libs.bcutil)
 
   testImplementation(libs.coroutines.test)
   testImplementation(libs.kotlin.junit)