This is from your case:
 
	foqrlysumg - 10 sign, 3 vowels 
	ntzlnnsqkg  - 10 sign, 0 vowels 
	fxmsjjlmhy - 10 sign, 1 vowels 
	gtrujmjstp - 10 sign, 1 vowels 
	oqrlysumg - 9 sign, 3 vowels  
	ntzlnnsqkg - 10 sign, 0 vowels 
	osrgffgpjn - 10 sign, 1 vowels 
	uyoxwihnpk - 10 sign, 3 vowels
 
	 
 
	This are real firstname and lastname that user have:  
	Strzbrnyk  -  9 sign, 1  vowels   
	Trzciński  -  9  sign, 2 vowels 
	Brzostryk -  9  sign, 2 vowels 
	Krzyżanek  -  9  sign, 3 vowels  
	Tschrnsky  -  9  sign,  1 vowels 
	Krzysztof -   9 sign, 2  vowels 
	Brtislav  -  9 sign, 2 vowels 
	Schrnkopf  -  10 sign, 1 vowels 
	Thrnblstk  -  10 sign, 0 vowels 
	Blytzkrag  -  9 sign, 2  vowels 
	Grbndsson  -  10 sign, 1 vowels  
	Wrzstynyk  -  10 sign, 1  vowels
 
	 
 
	As you can see, there's no difference between false and true names in the number of vowels or consonants.
 
	What you're asking is possible, but I don't see how anyone could implement and use it without compromising the registration process.