/// <summary>
/// Returns the number of keys in the package with the specified policy value
/// </summary>
///
/// <param name="KeyStream">The stream containing the VolumeKey</param>
/// <param name="KeyPolicy">The key policy to search</param>
///
/// <returns>The number of keys with that policy</returns>
public static int KeyCount(Stream KeyStream, KeyPolicies KeyPolicy)
{
// get the header
PackageKey pkey = new PackageKey(KeyStream);
int count = 0;
for (int i = 0; i < pkey.SubKeyID.Length; i++)
{
if (KeyHasPolicy(pkey.SubKeyPolicy[i], (long)KeyPolicy))
{
count++;
}
}
return(count);
}
/// <summary>
/// KeyAuthority constructor.
/// </summary>
///
/// <param name="DomainId">Domain identity; a 16 byte field that can describe the domain, a description, or contain a secret shared by a group</param>
/// <param name="OriginId">Origin identity; a unique 16 byte value identifying the node that created this key</param>
/// <param name="PackageId">A unique 16 byte field used for storage or as identity of this package</param>
/// <param name="PackageTag">A 32 byte field containing an optional package description or authentication code</param>
/// <param name="KeyPolicy">A <see cref="VTDev.Libraries.CEXEngine.Crypto.Enumeration.KeyPolicies">KeyPolicy</see> master flag that contains the policy flags applied to each subkey set</param>
/// <param name="OptionFlag">Used by KeyPolicy if the flag is set to <see cref="VTDev.Libraries.CEXEngine.Crypto.Enumeration.KeyPolicies.Volatile">Volatile</see>, set as the key expiration date/time in Ticks</param>
/// <param name="TargetId">The hashed value of the targets origin id field, used to authenticate a target installation. A null value generates zeros.</param>
public KeyAuthority(byte[] DomainId, byte[] OriginId, byte[] PackageId, byte[] PackageTag, KeyPolicies KeyPolicy, int OptionFlag = 0, byte[] TargetId = null)
{
this.DomainId = new byte[DOMAINID_SIZE];
Array.Copy(DomainId, 0, this.DomainId, 0, DomainId.Length < DOMAINID_SIZE ? DomainId.Length : DOMAINID_SIZE);
this.OriginId = new byte[ORIGINID_SIZE];
Array.Copy(OriginId, 0, this.OriginId, 0, OriginId.Length < ORIGINID_SIZE ? OriginId.Length : ORIGINID_SIZE);
this.TargetId = new byte[TARGETID_SIZE];
if (TargetId != null)
{
Array.Copy(TargetId, 0, this.TargetId, 0, TargetId.Length < TARGETID_SIZE ? TargetId.Length : TARGETID_SIZE);
}
this.PackageId = new byte[PACKGID_SIZE];
Array.Copy(PackageId, 0, this.PackageId, 0, PackageId.Length < PACKGID_SIZE ? PackageId.Length : PACKGID_SIZE);
this.PackageTag = new byte[PACKGTAG_SIZE];
Array.Copy(PackageTag, 0, this.PackageTag, 0, PackageTag.Length < PACKGTAG_SIZE ? PackageTag.Length : PACKGTAG_SIZE);
this.KeyPolicy = (int)KeyPolicy;
this.OptionFlag = OptionFlag;
}
/// <summary>
/// Returns the number of keys in the package with the specified policy value
/// </summary>
///
/// <param name="KeyStream">The stream containing the VolumeKey</param>
/// <param name="KeyPolicy">The key policy to search</param>
///
/// <returns>The number of keys with that policy</returns>
public static int KeyCount(Stream KeyStream, KeyPolicies KeyPolicy)
{
// get the header
PackageKey pkey = new PackageKey(KeyStream);
int count = 0;
for (int i = 0; i < pkey.SubKeyID.Length; i++)
{
if (KeyHasPolicy(pkey.SubKeyPolicy[i], (long)KeyPolicy))
count++;
}
return count;
}
private bool HasFlag(long Flags, KeyPolicies Policy)
{
return((Flags & (long)Policy) == (long)Policy);
}
private bool HasFlag(long Flags, KeyPolicies Policy)
{
return ((Flags & (long)Policy) == (long)Policy);
}
private void ClearPolicy(KeyPolicies KeyPolicy)
{
if (HasPolicy(KeyPolicy))
_container.Authority.KeyPolicy &= ~(long)KeyPolicy;
}
private bool HasPolicy(KeyPolicies KeyPolicy)
{
return ((_container.Authority.KeyPolicy & (long)KeyPolicy) == (long)KeyPolicy);
}
private void SetPolicy(KeyPolicies KeyPolicy)
{
if (!HasPolicy(KeyPolicy))
_container.Authority.KeyPolicy |= (long)KeyPolicy;
}
/// <summary>
/// KeyAuthority constructor.
/// </summary>
///
/// <param name="DomainId">Domain identity; a 16 byte field that can describe the domain, a description, or contain a secret shared by a group</param>
/// <param name="OriginId">Origin identity; a unique 16 byte value identifying the node that created this key</param>
/// <param name="PackageId">A unique 16 byte field used for storage or as identity of this package</param>
/// <param name="PackageTag">A 32 byte field containing an optional package description or authentication code</param>
/// <param name="KeyPolicy">A <see cref="KeyPolicies">KeyPolicy</see> master flag that contains the policy flags applied to each subkey set</param>
/// <param name="OptionFlag">Used by KeyPolicy if the flag is set to <see cref="KeyPolicies.Volatile">Volatile</see>, set as the key expiration date/time in Ticks</param>
/// <param name="TargetId">The hashed value of the targets origin id field, used to authenticate a target installation. A null value generates zeros.</param>
public KeyAuthority(byte[] DomainId, byte[] OriginId, byte[] PackageId, byte[] PackageTag, KeyPolicies KeyPolicy, int OptionFlag = 0, byte[] TargetId = null)
{
this.DomainId = new byte[DOMAINID_SIZE];
Array.Copy(DomainId, 0, this.DomainId, 0, DomainId.Length < DOMAINID_SIZE ? DomainId.Length : DOMAINID_SIZE);
this.OriginId = new byte[ORIGINID_SIZE];
Array.Copy(OriginId, 0, this.OriginId, 0, OriginId.Length < ORIGINID_SIZE ? OriginId.Length : ORIGINID_SIZE);
this.TargetId = new byte[TARGETID_SIZE];
if (TargetId != null)
Array.Copy(TargetId, 0, this.TargetId, 0, TargetId.Length < TARGETID_SIZE ? TargetId.Length : TARGETID_SIZE);
this.PackageId = new byte[PACKGID_SIZE];
Array.Copy(PackageId, 0, this.PackageId, 0, PackageId.Length < PACKGID_SIZE ? PackageId.Length : PACKGID_SIZE);
this.PackageTag = new byte[PACKGTAG_SIZE];
Array.Copy(PackageTag, 0, this.PackageTag, 0, PackageTag.Length < PACKGTAG_SIZE ? PackageTag.Length : PACKGTAG_SIZE);
this.KeyPolicy = (int)KeyPolicy;
this.OptionFlag = OptionFlag;
}
