diff --git a/kmp-advcrypto/src/linuxX64Main/kotlin/io/karma/advcrypto/linux/keys/OpenSSLKey.kt b/kmp-advcrypto/src/linuxX64Main/kotlin/io/karma/advcrypto/linux/keys/OpenSSLKey.kt
index 0af939e..48d7f94 100644
--- a/kmp-advcrypto/src/linuxX64Main/kotlin/io/karma/advcrypto/linux/keys/OpenSSLKey.kt
+++ b/kmp-advcrypto/src/linuxX64Main/kotlin/io/karma/advcrypto/linux/keys/OpenSSLKey.kt
@@ -27,7 +27,7 @@ import kotlinx.cinterop.UByteVar
 import kotlinx.cinterop.get
 import kotlinx.cinterop.reinterpret
 import kotlinx.cinterop.toKString
-import libssl.ERR_func_error_string
+import libssl.ERR_error_string
 import libssl.ERR_get_error
 import libssl.RAND_bytes
 
@@ -57,8 +57,8 @@ class OpenSSLKey(private val secureHeap: SecureHeap,
         ): OpenSSLKey {
             val dataSize = (keySize / 8).toULong()
             val rawDataPtr = secureHeap.allocate((keySize / 8).toULong()).reinterpret<UByteVar>()
-            if (RAND_bytes(rawDataPtr, 1) != 1) {
-                throw Exception(ERR_func_error_string(ERR_get_error())?.toKString())
+            if (RAND_bytes(rawDataPtr, dataSize.toInt()) != 1) {
+                throw Exception(ERR_error_string(ERR_get_error(), null)?.toKString())
             }
 
             return OpenSSLKey(secureHeap, purposes, algorithm, rawDataPtr, dataSize, type)
diff --git a/kmp-advcrypto/src/linuxX64Main/kotlin/io/karma/advcrypto/linux/providers/OpenSSLCryptoProvider.kt b/kmp-advcrypto/src/linuxX64Main/kotlin/io/karma/advcrypto/linux/providers/OpenSSLCryptoProvider.kt
index 60b688d..92f2857 100644
--- a/kmp-advcrypto/src/linuxX64Main/kotlin/io/karma/advcrypto/linux/providers/OpenSSLCryptoProvider.kt
+++ b/kmp-advcrypto/src/linuxX64Main/kotlin/io/karma/advcrypto/linux/providers/OpenSSLCryptoProvider.kt
@@ -25,12 +25,8 @@ import io.karma.advcrypto.keys.enum.KeyType
 import io.karma.advcrypto.linux.keys.OpenSSLKey
 import io.karma.advcrypto.linux.keys.OpenSSLPKey
 import io.karma.advcrypto.linux.utils.SecureHeap
-import kotlinx.cinterop.CPointer
-import kotlinx.cinterop.CPointerVar
 import kotlinx.cinterop.CValuesRef
 import kotlinx.cinterop.ExperimentalForeignApi
-import kotlinx.cinterop.IntVar
-import kotlinx.cinterop.UByteVar
 import kotlinx.cinterop.UIntVar
 import kotlinx.cinterop.addressOf
 import kotlinx.cinterop.alloc
@@ -48,7 +44,6 @@ import libssl.EVP_DigestInit
 import libssl.EVP_DigestUpdate
 import libssl.EVP_MAX_MD_SIZE
 import libssl.EVP_MD
-import libssl.EVP_MD_CTX
 import libssl.EVP_MD_CTX_free
 import libssl.EVP_MD_CTX_new
 import libssl.EVP_PKEY_free
@@ -64,21 +59,11 @@ import libssl.EVP_sha3_256
 import libssl.EVP_sha3_384
 import libssl.EVP_sha3_512
 import libssl.EVP_sha512
-import libssl.MD5
 import libssl.RSAPublicKey_dup
 import libssl.RSA_F4
 import libssl.RSA_free
 import libssl.RSA_generate_key_ex
 import libssl.RSA_new
-import libssl.SHA1
-import libssl.SHA224
-import libssl.SHA224_DIGEST_LENGTH
-import libssl.SHA256
-import libssl.SHA256_DIGEST_LENGTH
-import libssl.SHA384
-import libssl.SHA384_DIGEST_LENGTH
-import libssl.SHA512
-import libssl.SHA512_DIGEST_LENGTH
 
 class OpenSSLCryptoProvider: AbstractProvider(
     "Default",
diff --git a/kmp-advcrypto/src/linuxX64Main/kotlin/io/karma/advcrypto/linux/utils/SecureHeap.kt b/kmp-advcrypto/src/linuxX64Main/kotlin/io/karma/advcrypto/linux/utils/SecureHeap.kt
index b55f7ab..dba0e25 100644
--- a/kmp-advcrypto/src/linuxX64Main/kotlin/io/karma/advcrypto/linux/utils/SecureHeap.kt
+++ b/kmp-advcrypto/src/linuxX64Main/kotlin/io/karma/advcrypto/linux/utils/SecureHeap.kt
@@ -24,7 +24,7 @@ import libssl.CRYPTO_secure_malloc
 import libssl.CRYPTO_secure_malloc_done
 import libssl.CRYPTO_secure_malloc_init
 import libssl.CRYPTO_secure_malloc_initialized
-import libssl.ERR_func_error_string
+import libssl.ERR_error_string
 import libssl.ERR_get_error
 
 /**
@@ -66,7 +66,7 @@ class SecureHeap(size: ULong, minSize: ULong): AutoCloseable {
      * @since  12/06/2024
      */
     fun allocate(size: ULong): COpaquePointer = CRYPTO_secure_malloc(size, this.toString(), 47)
-        ?: throw Exception(ERR_func_error_string(ERR_get_error())?.toKString())
+        ?: throw Exception(ERR_error_string(ERR_get_error(), null)?.toKString())
 
     /**
      * This method frees the allocated memory from the secure heap. This also deletes the data